This is a crossover of Kamen Rider Den-O and Omamori Himari, I don't own ether of them those belong to the creators. I'm doing this for fun not profit, hope you like it.

Omamori Den-O:

Timeline 2: Memories of The Past

Everyone on DenLiner cover their ears after Rinko's scream.

"Geez girl, no reason to blow our ears off." Momotaros exclaimed as he was rub his finger in his 'ear'.

"Wouldn't you guys be freaking out at this?!" Rinko said as he points at the window. "Just where is this place just what is this train?!"

The entrance door soon opens revealing an older man holding a cane. He has black hair with matching eyes, and is wearing a suit. This was the Owner of the DenLiner

"Where we are at is time itself. And the train is called the DenLiner the train that travels through time." Owner said.

Rinko stared at what the older man had just said.

She blinked.

Once.

Twice.

Thrice.

And that's when she decided to breakdown a little, again.

(Outside)

DenLiner was driving through the track calmly before…

"YOU MEAN WE'RE IN A TIME MACHINE!?"

It shook a little as Rinko yelled from the top of her lungs, causing the DenLiner to shake comically.

(Inside)

Everyone was covering their ears again, and Rinko was panting to catch her breath.

"Oh, her screams make anybody cry." Kintaros sobbed comically.

"I'm sorry, I'm sorry. I'm still processing all of this." Rinko apologized.

Owner then looks at Rinko and then eyed Himari and surprisingly he wasn't bother by her cat ears. He then looks at Yuto.

"Yuto-kun, you know how strict I am on passengers without tickets."

"I'm sorry Owner, but let me explain." Yuto said before explaining what happen today.

(Play Climax Jump by AAA)

(The train of time, DenLiner. Will the next station of time be the past? The future?) DenLiner starts moving through a cave and reaches the end.

(Jikan no name wo tsukamaete. Ima sugu ni ikou yakusoku no basho!) DenLiner travels through the time line, as Den-O SF approaches his bike in the cockpit. In his house, Yuto grabs the Pass and leaves.

(Genkai mugen iza tobikome Climax Jump! {Ii jan! Ii jan! Sugee Jan?! Ii jan! Sugee jan?!}) Den-O inserts the Pass into the bike before disconnecting a cart and starts driving through time as the title appear.

(Kanaetai yume ga aru nara. Shinjinakucha negatta hibi wo) Yuto stands in the middle of a ruined future as burning calendars fall around him. A cake smashes to the ground in a dark room and Yuto looks behind as he felt that. In the dark room, Himari walks away as her face was filled with tears.

(Catch the Wave!) An hourglass resets.

(Mayoisounatoki kanzarazu. Moi no tsuyosa ga michibiku) Yuto gets the Pass and points with it as white lines appeared. Den-O SF was in a similar dark room, turning his back on the camera. Himari's cake was soon repaired and ends up in her hands as if nothing happened.

(Kimi ga nozomu mirai sude ni in your hands!) Yuto scans the Pass with his belt while in the dark room; Den-O Plat Form began transforming into Sword Form. Den-O SF does his pose as he prepares his Hissatsu Waza.

(Hajimari wa istumo tosuzen! Unmei wo tsurete yuku Time Tripin' Ride) Den-O begins running around slashing the air. In DenLiner, Himari and Yuto were back-to-back while the camera was on Himari as she laughs and smiles. In Yuto's house, Rinko and Yuto were back-to-back with Rinko laughing. Yuto, in both places, smiles and laughs back. We then see Yuto and behind him were his alternate personas when he is possessed by the Taros.

We then see Den-O's other forms as they posed.

(Dare yori takau! {Ii jan! Ii jan! Sugee Jan?!}) We soon see Yuto and his other personas (The Taros) hanging around until R-Yuto tosses the Pass. Den-O SF backs up his bike as he is prepared to do something.

(Genkai mugen iza tobikome Climax Jump! {Ii jan! Ii jan! Sugee Jan?! Ii jan! Sugee jan?!}) Den-O SF and his bike were soon launched backwards into DenLiner as it continues its route with each of the Taros dancing in each corner of the screen.

(Somewhere else)

Yuuki and Gaoh arrived at what appears to be a dark room of an abandon estate. Yuuki stopped as he recognizes a figure other than Gaoh on a sofa.

"Fancy place you found, Negataros." The figure got up and faces Yuuki. He was wearing the same robe they were wearing except his hood was down. He had a face that was similar to Momotaros's but it was black with red highlights and horns at the sides. Negataros stood up and faced Yuuki.

"As if you could pick a better place, anyway, is this Den-O's world?" Gaoh soon walked up towards them.

"Indeed but not just any Den-O but our Den-O." Negataros soon started laughing.

"Finally, revenge will be mine!" Negataros said.

"Don't you mean 'ours'?" Gaoh asked.

"Of course," Negataros nodded. "It's just that…fate has given us the opportunity to destroy them again and just picturing it-."

"Will have to wait." Gaoh said. "We have to build ourselves up here."

"Who died and made you leader?" Negataros asked.

"I'm with him, why should you be in charge?" Yuuki asked as well.

"Out of the three of us, I'm the most experienced. Even though Den-O is here we still have to take this world for Dark Decade and the other Dark Riders." Gaoh said.

"But why you? I should be in charge! I once ran an evil organization!" Negataros stated.

"And how did that go, again?" Gaoh replied and Nega soon rushed to him.

"You have something you want to say to me?!" Before Gaoh can say anything, Yuuki got in the middle and broke them apart.

"This isn't helping. As much as I want to destroy Den-O, we have another job here." Yuuki stated. "In exchange for our revival and revenge we take this world for Dark Decade. After that, we can rule here." Yuuki reminded them. "So both of you stop fighting, the only person here to fight is Den-O."

Nega and Gaoh looked at each other.

"He's right, this isn't helping. We have to do something." Gaoh proposed.

"First smart thing you suggested. What should we do?" Nega asked.

"I'll look more into this world and learn everything about it. The more we learn the sooner we can have allies here along with where to strike." Gaoh said.

"I guess I can form another evil organization for us to control." Negataros said. "Shouldn't be too hard but we need a name for ourselves here." Nega and Gaoh soon see Yuuki leaving.

"Where are you going?" Gaoh asked.

"Someone has to keep an eye on Den-O. I'll let you guys know if there any changes." Yuuki said before leaving.

(Back at DenLiner)

"I see, so they saw you transformed into Den-O, and Himari-kun claims she knows your past." Owner said, Yuto nodded, Owner looked at the girls.

"Seeing that as Yuto trust you two, and Himari-kun knows about Yuto-kun's past, it would be appropriate here to give you free passage here." Owner said.

"Thank you, but that still doesn't explain about what happen earlier." Rinko said.

"Even if we explained, I doubt a baka like you can understand." Ryutaros teased.

"What you say?!" Rinko snapped at him, causing Ryutaros to hide behind Yuto.

"Ah, she's scary." Ryutaros whined.

"Calm down, Ryuta, Rinko may be short temper sometimes, but she can be nice too." Yuto told him.

"Yuto! I'll have you know I'm not short temper!" Rinko yelled.

"Rinko, can you claim down." Yuto raised both hands. "Didn't you want explanation about what happen?"

Rinko gritted her teeth before crossing her arms.

"Alright, then please continue." Rinko said.

"Alright then, now where was I?" Owner thinks and then remembers. "Ah yes, the two of them saw the Rider System, correct?"

"Hai." Yuto nodded.

"To be frank, with the pass that Yuto-kun has he could transform into Kamen Rider Den-O but in order for Yuto-kun to use it effectively he would have to be possessed by one of them." Owner pointed at the Taros, which made Himari on edge thinking they might some sort of spirits.

"Okay, what's the point of that?" Rinko asked.

"There are creatures called Imagins. They come from a distant point of time to the present to grant wishes through a contract. However, as soon the contract is completed the Imagin will enter the contractor's memories and will alter time from there. The Rider System was created to stop them. There are various forms of Imagin." Owner explained.

"Like what?" Rinko asked again.

"Them." Owner answered, pointing at the Taros, which made Rinko a little scared, and really made Himari on guard. "But they are different; they do not wish to alter time but to preserve it."

Ryutaros walked towards Himari.

"Yeah, so let's get along Neko-chan." Ryutaros said before starching her behind her cat ear, which made Himari really enjoying it before snapping out of it and smacks his hand away.

"Stop that! The only one who's allowed to touch me is my lord!" Himari exclaimed, Ryutaros retreated behind Yuto again.

"Yuto-kun bumped into one of them before being revealed as a Singularity Point." Owner said.

"A what?" Rinko blinked not sure what he meant.

"People who wouldn't be affect by time and should they be possessed they could force the Imagin out. They are ideal users for the Rider System." Owner said, Rinko pressed her fingers onto her head trying to understand what he was saying.

"Oh I get it!" Rinko had an idea. "So basically Yuto is a time traveling superhero that fights monsters and other time stuff! Right?"

"I guess you can say that." Urataros shrugged.

'Who, would have thought that the young lord was involved with in such a thing.' Himari thought.

"Alright Neko-ojousan," Urataros got her attention. "We answer your questions, now care to tell us ours. Like how you Yuto for instance."

"Very well then." Himari nodded. "I am here to fulfill the oath that I had sworn upon my Lord's grandfather."

"What kind of oath?" Urataros asked.

Himari soon started to explain everything. That Yuto's families were one of the twelve Demon Slayers families and that more spirits, or ayakashi, will continue to come for Yuto because of it. Rinko wouldn't have believed it if she hadn't seen how Taizou acted earlier.

"Interesting…" Urataros said.

"Way to go Yuto!" Kintaros slapped his hand on Yuto's shoulder. "You know that you're from such a strong family! Makes me want to cry!" Kinataros cracked his neck.

"Thank you…" Yuto massages his shoulder.

"But there's one thing I don't get." Uratraos thought about it. "If these ayakashi wanted Yuto dead, why wait this long? Why not attack him earlier?"

"I was going to that. My Lord let me see your amulet." Himari requested.

"Huh, okay sure." Yuto showed it.

"I thought so. Tis gone already."

"Huh?"

"This amulet hath the power to protect the one who wore it." Himari explained. "Tis only to last till Milord have become a man…in other words, thy 16th birthday, right now Milord hath no protection, or at least tis what I thought. Now more and more spirits shall gather to face thee, much like this afternoon, tis that fate of the one with thy blood."

"Oath, you mean the oath from my grandfather?" Yuto asked.

"Hai," Himari nodded. "Tis an ancient one, Milord's Grandfather did ask me to swear it. But even if he hath not asked..." Himari then walked towards Yuto and hugged, which made his allergies kick in. "I would have come anyway to protect you."

"Hey you get away from him!" Rinko snapped trying to push her off of him.

"His growing up so fast." Urataros said in amused.

"Glad I'm not in the middle of that." Momotaros said.

(Next day at school)

"I know this is sudden, but we have a new transfer student here." Ms. Kisaragi explained. Himari was in front of the class. Yuto seemed slightly surprised while Rinko looked frustrated that she's here. "Please, tell us your name."

"I am Himari Noihara. I hail from countryside, so I know not what trouble I may cause you, but it gives me great honor to meet ye." Himari said. Everyone was gossiping about her, either because she's hot (especially from males) or how she speaks.

(On DenLiner)

"Well she certainly became the center of attention." Urataros said.

(Back at school)

"Good, how about a seat-" Before she could finish, Himari walked up to Yuto but was already occupied.

"Excuse me but it would serve me better to know everyone if I sat there ran than be forgotten in the back. Wouldn't thou be so kind as to give thy seat to me, M'lord?" The boy instantly got up.

"H-Hai, no problem!"

"My thanks." She soon sat on the seat next to Yuto's which further frustrates Rinko.

"Hey, Himari, when did you become a transfer student?" Yuto asked.

"I placed wards around the area. So the people here would accept my presence more easily." Himari explained. Just then Rinko was so frustrated that she broke her pen.

"THAT'S IT!" Rinko exclaimed. She soon pointed her finger at Himari. "Himari Noihara! I challenge you to a duel! If I win you will stay away from Yuto!" Everyone was surprised except Himari.

"H-Hey, Rinko…" Yuto began but Himari stepped up to her.

"What's with you all of a sudden?"

"Himari…"

"Very well, I accept." Himari replied.

'Just what's happening here?!' Yuto thought.

(Back on DenLiner)

"Oh, Yuto," Urataros shook his head. "How oblivious you are to maiden's heart."

(Back to school)

Later, the duel consisted of physical contests such as racing, martial arts, tennis, etc. At the end, in short, Himari beat Rinko at everything. Everyone was surprised Rinko, the strongest supporter for exercise in the sports club, lost.

"Milady, dost not have the power to protect the Young Master." Himari observed. "I have that power. Just give up and accept the fact." Himari stated as she walked past Rinko. Rinko soon scream.

"Shut up! You stupid cat! Don't just intrude in our lives like the monster you are!"

"Rinko!" Yuto said. Himari had a blank on her face while Rinko was shocked at what she just said.

"I'm aware of the fact." Himari stated before walking away. Yuto followed her.

After school, Himari was sitting on the rooftop and Yuto walked in through the door.

"Could you forgive Rinko?" Yuto asked. "She didn't mean any harm. She just confused since you just showed up all of a sudden?" He explained.

"Worry not. I am alright." She answered.

"Thank you."

"But, what sayst thou?" She asked.

"Huh?" Yuto blinked.

"I'd liked thee to speak thy mind. Dost thou think a spirit like me cause only trouble?" Himari asked. Yuto looked at her.

"I've known something like this for a long time since I met Momotaros and the others so it has been the truth from what you said. That you were just worried about me like my grandparents were. And, I could never turn a girl like that away." Yuto explained while smiling. Himari was surprised but soon her expression turned to content.

"If so, please catch me." Himari said as shell fell off. Yuto ran and caught her. The two were on the floor and Himari was snuggled on to his chest, and he could swear that he heard Urataros whistling.

'When did I felt this way before?' Yuto thought as he was blushing.

'Way to go Yuto! That's a point for you!' Urataros praised.

'Will you shut up?!' Yuto exclaimed.

'Dost thou remember now, Young Master? Tis alright…it's only a matter of time.' Himari thought.

(With Rinko)

Rinko was walking home, while feeling a little guilty of what she said to Himari.

"I didn't mean to be mean…" Rinko whispered while she didn't notice sand was falling on the ground in front of her. "But she can't just show up and be so clinging to Yuto like that, honestly…"

As Rinko was walking she step on the sand and let out.

"I wish she just go away…" Rinko continued to walk. When she was gone the sand then suddenly started to shift into a body, and then it's head turn into a shape of a dog, but with two more heads.

(Next day)

Things had been rather awkward with Yuto and Rinko in school. They hadn't talked since they got to school.

After gym class the ones cleaning and putting away the equipment was Yuto, Rinko, and Himari.

"Here we go." Himari put the last of the equipment away in the closet.

"Ohm, Himari…" Himari looks and saw Rinko behind him.

"Oh, hello Rinko." Himari said. Unknown to them Yuto was listening in.

"Listen…about what happen yesterday I'm…" Rinko was about to finish until they heard an explosion.

"What the?!" Yuto let out.

'Yuto! It's a Imagin!' Momotaros warned. Himari and Rinko run out of the closet and the three of them saw a hole in the wall.

Coming through the hole, is a three head dog creature. It had black fur and red eyes also having razor sharp claws, wearing purple armor with some parts green also having spikes. This is the Cerberus Imagin.

"It's those things again?!" Rinko shouted. "What's it doing here?!"

"I don't know," Yuto brought out the Den-O Belt and put it on. "But I'm waiting to find out."

As Yuto brought out the DenLiner Pass, the Cerberus Imagin fired an energy blast in its mouth's, at Yuto near his feet which sends him flying to the wall then to the ground.

"Yuto!/Young Lord!" Rinko and Himari said in the same time.

The Cerberus Imagin walks towards them; Himari had an angry look on her face and charges at the Imagin.

"How dare you do that to the Young Lord!" Himari jump going to kick the Imagin but it caught her, and throws her to the ground her hard.

"Himari!" Yuto exclaimed as he got back. The Cerberus Imagin soon ready it's claws going for the kill but Yuto grabs the Imagin on its back. "Leave her out of these!"

The Imagin didn't listen as he throws Yuto back, it soon picks up Himari by her shirt and throws her to wall hard.

"It's after Himari?" Yuto thought out loud. As Himari was about to get back up, the Cerberus Imagin fired an energy blast at the ceiling making it fall on Himari.

"Himari!" Yuto runs up to shield her from the debris as it falls on them.

"Yuto!" Rinko shouted in worried, the Cerberus Imagin turn towards her, causing Rinko to step back.

"What's wrong isn't, this what you wanted?" The Cerberus Imagin asked.

"What are talking about?" Rinko asked not sure what the Imagin meant.

"Come on, don't tell you forgotten you wish for her to disappear." The Imagin said before walking slowly towards Rinko. "You made the contract with me."

"What are you talking about…" Rinko thought it and she remembers what she said yesterday, and what Owner told her about Imagin's. "You mean on that day I…"

"That's right, you made the contract with me and I help granted your wish." The Imagin said.

"N-No, I didn't mean it like that!" Rinko shook her head. "I didn't mean for anything like this!"

"Well, you should have remembered the old saying…" The Imagin stood in arm's length in front of Rinko. "Be careful what you wished for, and now the contract is complete!"

The Cerberus Imagin opened up a hole from Rinko's chest, it soon jumped in before the hole closed, and Rinko fall on her knees.

The debris that buried Yuto and Himari soon started to move and soon been lifted up by Yuto with his hair tied in a ponytail and having a yellow streak, and his eyes are yellow, and then throws it away before cracking his neck.

"Young Lord…?" Himari looked at Yuto.

"Sorry, Nekoji, but I'm using Yuto's body right now." The voice belongs to Kintaros.

"Oh I see…" Hiamri nodded not sure she would get use to that.

K-Yuto looks at Himari, and K-Yuto reverted back into Yuto.

"Rinko!" Yuto and Himari runs up to her and saw the sand near her. "So she was the contract holder."

Yuto brought out the pass placing at her head. The blank ticket soon had a picture of the Cerberus Imagin and a date. It was April 21, 2003.

"Ten years ago?" Himari said. "What memory does she have there?"

"I know, because that was the day when we first met." Yuto said.

(Flashback, 10 years ago)

A child Yuto, step outside of his house to explore his new neighborhood.

"Hello there." Yuto look and saw a child Rinko waving to him.

"Hello." Yuto waved back.

"Your that new kid that moved here with his family right?" Rinko asked.

"Hai." Yuto nodded.

"Well it's nice to meet you. My names Rinko Kuzaki, and your name?"

"Yuto Amakawa." Yuto said.

"Amakawa… that sure is mouthful." Rinko said.

"Hey!" Yuto exclaimed.

"Well in any case," Rinko offered her hand for a hand shack. "Let's get along, Yuto."

"Sure, Rinko." Yuto shook her hand.

(End of Flashback)

"So that's her precious memory…" Yuto said before hearing explosions outside. Yuto went out to see what's going on, Himari soon followed.

(April 21, 2003, in Yuto's neighborhood)

Child Rinko saw child Yuto, she was about to walk towards him to say hello but soon stopped and passed out, and not too long the Cerberus Imagin spawned from her.

The Imagin soon looks around to his surroundings, and not too long started firing energy blasts at random buildings and fired energy slashes from its claws.

(Back in 2013)

Yuto and Himari we're now on the roof of the school, and saw he explosions going off everywhere.

"This is the power of the Imagins…" Himari said in awe.

"That's exactly what I said when I first saw it." Yuto said and remembers when after he became Den-O.

(Flashback)

Yuto and Momotaros saw the destruction an Imagin is doing in the past, to the present.

"This is the power of Imagins…" Yuto said.

"Yeah sure is, this is what happens when Imagins journey through past. And they're not going to stop until they destroy this time." Momotaros said. "So what are you going to do Yuto? Are you going to just stand by and let this happen?"

Yuto soon looks at the DenLiner Pass in his hand. Right now the Imagin is going around destroying everything in its path and won't stop, and right now he has the power to stop it, and soon made up his mind.

"Alright Momotaros I'll do it." Yuto said with strong resolve. "Right now I have power stop all of this, and I should use this power to stop all this."

"Alright," Momotaros nodded. "I like the looked in your eyes. Don't worry, I be with you every step in the way, and I'm not only one." Soon the other Imagin walks towards them. "We all in this together."

Yuto nodded.

(End of flashback)

"And on that day, I help them in their fight to protect time ever since." Yuto said looking at the pass.

"Young lord." Himari can't help but smile.

"Alright, Momotaros you ready?!" Yuto asked.

'Always!' Momotaros told him.

"Alright let's go. Henshin." Yuto swiped the pass on the belt.

"SWORD FORM!"

Yuto soon transformed into Den-O SF.

"Ore…Futatabi Sanjou!" Den-O SF said. Soon a portal open in the sky, and coming through it is DenLiner itself, Den-O SF soon got on broad.

(Inside DenLiner)

Den-O SF soon got in the cockpit. Inside is a white and blue Honda XR250, this is the Machine Den-Bird.

Den-O SF got on the bike and inserts the Pass into the bike. He was about to drive the DenLiner until he heard the door open, he turned and saw Himari come in.

"Hey, what are you doing in here Neko?!" Den-O SF asked.

"Do you really need to ask? Wherever the Young Lord go's I go!" Himari told him, Den-O click his tongue as he rubs the back of his head knowing there's no time to argue.

"Alright fine! But you may want to hang on to something!" Den-O said before turning the handles and soon the DenLiner journey through the set time.

(April 23, 2003)

The Cerberus Imagin continues its streak of destruction until he heard a familiar tune. He looks up in the sky to see a portal opening with DenLiner coming out. It soon moved down and past, dropping Den-O and Himari off. DenLiner soon moved up to the sky and into another portal.

"You…" The Cerberus Imagin growled. Den-O assembled his sword and rested it on his shoulder.

"Alright you wanko, time for your beat down! From start to finish I'm in my Climax." Den-O soon charged at the Imagin.

The Cerberus Imagin fired an energy blast, but Den-O soon deflected it, and slashes at the Imagin on its chest, sending the Imagin back.

The Cerberus Imagin was about to attack with its claws, Den-O dodges it and counter slash and followed by an overhead slash, and did kick on its chest sending flying a good feet.

As the Cerberus Imagin got back up, Den-O soon part out the Pass.

"Time for my Hissatsu attack!" Den-O swipes the Pass on his belt.

"FULL CHARGE!" The blade soon flew out in the air.

"Part 2!" Den-O swung the blade at the Imagin and going for an overhead slash and destroying the Cerberus Imagin in a huge explosion.

"Wasn't that the same attack?" Himari asked.

"You shut up!" Den-O said.

(Back in present)

Rinko begins to wake up, and saw Yuto and Himari.

"Hey you okay?" Yuto asked.

"Yuto…" Rinko soon remembered what happen and soon got back up. "Yuto you're alright?! You're not hurt anywhere?!"

"Don't I'm worry I'm fine." Yuto raised both his hands. "I already took care of the Imagin."

Rinko then started sniffling, as tears come from her eyes.

"I'm sorry…this was my fault…if only I hadn't said all that…" Rinko said.

"Rinko it's okay really. I don't blame you for everything that Imagin did." Yuto said.

"Same with me as well." Himari said. "Also I to should apologize, it appears that I may have offended you in some way, that made you the Contract holder."

"It was not…no it kind of was I was getting angry and jealous on how you're getting close. And because of that, that Imagin almost killed you and Yuto. So I'm sorry as well." Rinko said. Himari soon offered her hand.

"How about this, we both forgive each other. And how about you and I become friends, how does that sound?" Himari asked.

"Sure I don't mind." Rinko said before shacking her hand. While Yuto smiled.

'I guess all well, and ends well.' Yuto thought.

"But that doesn't mean I'll let you have the Young Lord." Himari smirked.

"What does that mean?!" Rinko said.

"It means, I will be sure to take care the Young Lord, by myself." Himari declared.

"What no way! There's no way in hell, I let you do that!" Rinko said.

As they continued to argue, Yuto chuckled nervously.

"Guess I spoke too soon…" Yuto mutters. Seems like his life is going to be even more complicated.

To Be Continued…

There you have it hope you like it. Review to tell me what you think of the story.