A Heart Eclipsed by Shadows

Note: I don't own RWBY or the fusions I'm using for this story. Rooster Teeth owns RWBY and Midway owns the fusions.

Chapter 1: Beginnings

Flashback Starts

Alexander Arc had just seen his son's normally blue eyes suddenly change to blood-red then changed back. The legend of the Harmonixer had just been proven true, War was coming to Remnant within his generation. He needs to train Jaune to be ready for anything down the line of his life.

"Jaune… Do you understand what just happened right?"

Jaune was feeling weak and kneeling on the floor. Him activating the Harmonixer blood in him took a lot

"I became something rare and very powerful…?" said Jaune slowly.

Alexander decided to let Jaune know what being a Harmonixer meant later. A nine-year-old doesn't need to know he's a symbol of hardships to come, and being cursed to constantly absorb Malice from the Grimm.

"Correct Jaune and soon here I'll teach you how to fight. Then when you are seventeen, I'll talk to old Ozpin to get some transcripts to allow you into his academy. Does that sound good?"

Jaune was shaking his head as positive as he could in his weakened state.

"Then, tomorrow we start." said Alexander proudly and wickedly.

Flashback Ends

Jaune Arc was having a relatively smooth flight to Beacon, considering he hasn't puked on anyone's shoes and is enjoying a pleasant view of Vale. His family gets motion sickness on bullheads, but he does not have motion sickness what so ever. He instead has seasickness that limits him in Mistral due to boats being a major form of travel there. His father, Alexander Arc made sure to train him extensively after his Semblance has revealed to his family at the age of nine, teaching him how to wield Crocea Mors and Kickboxing with a bit of mixed martial arts. It helped that whenever he couldn't wield his weapon, he at least has some hand to hand skills to keep him in the fight and stay alive.

His semblance is the art of Fusion or what his father told him his title, a Harmonixer.

'I guess it isn't all so bad. My semblance is pretty good. although I still need to kill more Grimm. And… find those damn gravestones my dad told me to search for… This sucks." thought Jaune critically.

He looked to his right and notice two people talking, a blonde woman with a smaller redhead that seemed embarrassed and exasperated with the blonde.

"Yang…! I don't want to be the bee's knees! I don't want to be any kind of knees. I just want to be a normal girl with normal knees…" said the redhead.

"What's with you? Aren't you excited?" said the blonde now known as Yang.

"I am… it's just… I got moved ahead two years. I don't want anyone to think I'm special or something." said the redhead.

After a bit more talking between the two, a blonde woman appears on the window.

"Who is that?" said Yang confused.

"Hello and welcome to Beacon. My name is Glynda Goodwitch."

"Oh." said Yang a bit underwhelmed.

"And you are among the privileged few that have the honor to attend this prestigious academy. Our world is experiencing an incredible time of peace and as future Huntsmen and Huntress', it is your duty to uphold it. You have demonstrated the courage needed for such a task and now it's our turn to provide you with the knowledge and the training to protect our world." as her image on the screen disappears with a chime.

Ruby then walks to the window and admires the view with Yang as a man stumbles past the two holding his mouth, running to the trash can about to puke his breakfast out.

"I guess the view isn't for everyone I guess." chuckled Yang. Ruby nodded with her statement.

The guy just lost the battle with his stomach and puked on the floor. Right onto Yang's shoes.

"Oh gross! Yang you have puke on your shoes!" yelled Ruby disgusted.

"Ew! Gross get it off!" yelled Yang.

'I feel bad for that guy right now. I'd probably be in his shoes if I had motion sickness like him.' thought Jaune as the guy got punched to the wall for puking on Yang's shoes.

As Jaune was walking away the bullhead and admiring the view of Beacon he saw a girl in white with a lot of luggage checking her dust vials and in the far back, a girl in black was reading a book whose title he couldn't tell from this distance. He couldn't hear everything but the girl in white was yelling at the redhead from earlier for something then they suddenly blew up! The girl in black said a few words and then they both walked away from the redhead, seeing her fall back down to the ground in despair.

'I'd better help her… She needs a friend more than ever right now.' thought Jaune as he walked over to the redhead.

Ruby was laying on the ground dejected after the Heiress named Weiss Schnee yelled at her for blowing them both up with some fire dust that she hadn't checked if the seal was good then a girl in black

"Welcome to Beacon…" said Ruby sadly.

"Hey. Need a hand?" as Jaune held out his hand for her to grab. Ruby hoists herself up and dusts off her outfit although blushing a bit.

"Thank you for helping me. My name is Ruby Rose!" said Ruby happily.

"Jaune Arc. Nice to meet you." smiled Jaune.

"Why did you help me? Everyone just ignored me." said Ruby curiously.

"Well… My mom told me that strangers are just friends you haven't met yet." said Jaune, smiling.

"She's a smart woman if what you said is true." smiled Ruby.

"Well… I got this thing…" as Ruby pulled out her weapon and slams the blade in the ground.

"Whoa! What is that thing?!" said Jaune although a bit scared.

"It's my baby! Crescent Rose is a scythe that is also a fully customizable high impact sniper rifle!" cheered Ruby.

"It's a what?" Jaune said confused.

"It's also a gun." deadpanned Ruby.

"Oh. Well… At least you have a ranged weapon. I got two weapons." said Jaune as he pulled out his sword and shield.

Ruby looked curiously at the combo that Jaune held in his hands.

"Crocea Mors is just a simple sword and the shield can collapse into a sheath, but it is indestructible and was wielded by my great-great-great granddad in the Great War."

Jaune then pulls out two black colored gauntlets that looked like rib cages all around except the bottom where it has five holes to put his fingers in, retractable blades on top with two white and gold feathers on both sides of the gauntlets.

"These I call them Chimera. They can be used like brass knuckles or with the blades makes them deadlier. I'd use these if I didn't have Crocea Mors." said Jaune proudly.

Ruby had stars in her eyes when seeing Jaune's weapons.

"Now… Where's the Auditorium…?" chuckled Jaune nervously.

"I don't know. I was following you." said Ruby.

"Any landmarks or like a food court or something?"

"Nope." chuckled Ruby.

"Ruby! I saved you a spot over here!" yelled Yang, waving her hand to gain Ruby's attention.

"Hey! There's my sister. I'll see you later Jaune!" said Ruby as she disappears in a flurry of rose petals.

"Well… Where am I going to find a nice quirky girl to talk to...?" said Jaune as a redhead in bronze heard him. Jaune walks to the opposite wall and leans on it as Ozpin starts his speech.

After Ozpin's beginning speech everyone was told to go to the ballroom to get ready to sleep for the night. Jaune was looking in his bag for his pajamas and thankfully, he could ditch the blue onesie that his sisters always attempt to hide in his bag. He pulled out a white shirt with his gold double arc symbol on the back and a blue plaid pajama pants. Walking though the ballroom, he was called over by Ruby who was laying with her sister Yang.

"Hey Jaune, come meet my sister Yang!" said Ruby as she waved him over to them, Jaune carrying his sleeping bag with him.

"Hey Ruby. I'm Jaune Arc, nice to meet you…?" as Jaune held out his hand for Yang to shake.

"Yang Xiao-Long, nice to meet ya. Good to see Ruby has at least one friend here." said Yang with a smile.

"But I think Weiss counts as a negative friend… Back to zero." said Ruby a bit dejected.

"I don't think she's a negative friend… She's more like an enemy. one friend and one enemy." said Yang.

"Yeah Ruby. Wasn't she waving dust all around in your face causing you to sneeze? Also, why don't you talk to her?" Jaune points to the girl reading a book.

Both Ruby and Yang were talking to the girl named Blake and they were getting along until Weiss came over and started yelling at Ruby.

"What's your problem with my sister?!" yelled Yang angrily.

"She's a hazard for my health!" yelled Weiss in retaliation, crossing her arms and looking away.

Jaune figured this would be an appropriate time to break up before a professor yelled at them.

"Hey hold on. Let's actually try to be civil here." Jaune said nervously, holding his hands out to stop Weiss or Yang from doing something rash.

"Now let's introduce ourselves, my name is Jaune Arc. And your name is?" smiled Jaune towards Weiss

Weiss looked at him like he was stupid but decided to be civil.

"Weiss Schnee. Pleasure to meet you." said Weiss as she looked at Jaune a bit snobbishly.

"Ruby Rose." she introduced herself a bit better, although a bit excitedly.

"Yang Xiao-Long." she said in a flirty tone, causing Jaune to blush a bit.

"S-See… now can we get along for tonight? It's almost time to sleep…" stuttered Jaune.

Everyone agreed to go to sleep as Blake blew out the candle. Jaune can't help but think how lucky that he got to Beacon and to remind himself after getting done with Initiation to thank Ozpin for allowing him to attend. As Jaune fell asleep, he felt a tugging sensation on his aura and was completely knocked out.

Jaune woke up not in the ballroom but instead on a concrete floor next to a gate.

"Ugh… where am I…?" as Jaune looked around his surroundings.

It looked like a twisted forest with six different tombstones with various symbols strewn about with a solid fence going all around until the back where a huge door was seen with four different masks floating on four pedestals. (A.N: Look up Shadow Hearts element symbols to know what symbols are on the tombstones.)

"Aw man… I can't believe I'm back here in my nightmare… I hated this place so much…" grumbled Jaune as he walked forward though the graveyard.

"I always remember getting eaten by something around here. Why do I have to be here of all places?!" yelled Jaune in frustration and in fear.

Jaune then looked over to the right and saw the Earth and the Fire tombstone glowing.

"Huh. I don't remember those two glowing in my past nightmares." said Jaune curiously.

Jaune walked up and touched the Earth tombstone then suddenly, a bright light enveloped Jaune and a monster the same height of Jaune but covered in varied sizes of rocks appeared in front of him. Jaune jumped back to avoid a hit from the monster, putting on Chimera and dropping into his fighting stance.

"Well c'mon!" yelled Jaune in defiance towards the monster. The monster dropped in the same stance as Jaune.

Jaune ran at the monster when it tried to throw a hook but Jaune ducked and uppercut the monster stunning it, allowing Jaune to rain different straights and kicks to the monster. the monster at the last punch grabbed Jaune's fist and hit him with a haymaker sending him to the floor.

"Damn you pack a punch…" grumbled Jaune as he wiped his mouth on the back of his hand.

Jaune noticed the monster was wobbling and looked like it was on death's door.

'Time to end this…' thought Jaune wickedly as he ran to the monster landing an aura infused elbow to its ribs then Jaune jumped as high as he could and slammed the back of his right foot unto the back of the monster's head, killing it.

"Whew… you weren't so tough now! Huh?!" yelled Jaune in triumph as a blinding light washed over him and his aura changed from a pure white to a light green color.

A disembodied voice spoke out as his aura turned back to white.

"You have gained the soul of Vastitas!"

Jaune focused his aura in his right hand and a small light green flame appeared in his hand as his eyes turned blood-red.

"So… that's how I fuse then eh? That might come in handy." smiled Jaune as the flame disappeared.

Jaune looked over to his left a bit and held out his left hand towards the Fire tombstone as another light flashed over Jaune.

Jaune then looked at the tan man in front of him but had a helmet and various assortment of arm and leg armor. He dropped into the same fighting stance as Jaune but seemed a lot more powerful.

"Okay then… you'll be a tougher customer… But I got a slight advantage…" smirked Jaune as the light green flame appears in his right hand again but instead he focused on it enveloping him as a bright light flashed out but now Jaune was the monster now known as Vastitas.

"Now let's do this…" said Jaune but now his voice has deeper and gravellier, as if the earth was speaking in his stead.

Jaune ran towards the fusion monster and now learned that he was slower, so the monster landed a kick to Jaune's ribs but held strong. He barely felt the kick and knew he was slower and more durable in this form. Jaune aimed a straight to its ribs then followed up with a side knee. The monster parried the punch but couldn't block the knee and staggered back, allowing Jaune to uppercut it and elbow the monster hard. The monster responded by covering its right hand in flames, punching Jaune in the back of his head, making him kneel.

'Ow! Now they can use elements?! I wonder if I can too…?' thought Jaune in pain.

Jaune thought of the earth and his right hand hardened and was covered in jagged spikes of rock around his knuckles, Jaune kicking the monster's leg making it kneel. Jaune then lands blow after blow with his right hand killing the monster outright.

The light emanated from Jaune and he returned to his normal self.

"You have gained the soul of Karyl!"

"Sweet. Two fusion forms gained and now it's time to see what's up with the door." said Jaune as he walked to the door.

"Ho Ho Ho… It seems the young Harmonixer has finally greeted us…!" said the mask to the upper left.

"Yes. And he has gained two fusion souls to benefit himself in the real world!" said the mask to the upper right.

"So, what the hell are you guys? To be honest if you guys are my conscience, you guys have done a poor job of keeping my impulse low." said Jaune in a curious tone.

"We are the masks that govern your soul. You are cursed by us to constantly gain Malice for the fallen Grimm. But your fusion's use the malice to manifest themselves and you kill them and use their souls." said the mask on the lower left.

"Okay… great." deadpanned Jaune. These things are what cursed him while he's a Harmonixer.

"We have no further use for you to be here. Return to the land of the living!" proclaimed the mask that had a grail on the top of its head.

"Fine then." shrugged Jaune as he left them and gone to the gate.

'Now I can fuse in the real world… I would be best if I hide it until I can trust some people. I don't want to get attacked while in my fusion form…' thought Jaune critically.

As he got to the gate his body slowly faded away as to signal him waking up in the real world to get ready for Beacon's Initiation test.

A.N: Welcome to my first Fanfiction inspired by an old video game called Shadow Hearts. This doesn't have any of the characters and I only use the Fusion aspect of the game in here. Like and fav if you liked it and leave a review if you like to. I'd dedicate some of my time reading them if you have any clever ideas for this story. BTW I won't be doing Arkos as a ship in this. It's time we give other Jaune ships a time to shine. I'm thinking of Lancaster to symbolize Yuri and Alice's relationship in the game and I thought it would be a promising idea, but I will try other ships. I will try to upload a chapter every week or two but since I'm in training for my job and I have no damn clue what my schedule will be like and even worse it's seasonal… (War flashbacks of Black Friday.) Anyways, enjoy and I would love a beta for ideas.

Added Note: Updated this chapter to go ahead and include a bit of background for Jaune in this story and added in more dialog since writing this at 1 A.M was a bad idea for doing conversations between characters. (No amount of coffee can wash away the bad ideas…) And I want to thank the reviews for helping a bit.