Author note: Hi everyone, this is my very first fanfiction. Also, there's one thing I need to make clear first that I'm not good with English when come to writing. If there's any problem in my story (or you have suggestion), please tell me.

Hotaru Tachibana (from Aoharu X kikanjuu) will be replacing Issei. Not as a girl, but as a guy.

Summary: Hotaru Tachibana, who has a strong sense of justice and just cannot help confronting those who choose to perform malicious acts. Then, one day, a girl ask him out a date, but in the end, he was get killed by her, a vicious fallen angel. To top it all off, he's later reincarnated as a devil by his gorgeous senpai who tells him that she is also a devil and now his master.

Hotaru Tachibana, a second year at Kuoh Academy's high school. His best subject at school is PE, but his worst subjects are English and music.

He has blonde hair, lime-green eyes, and fair skin. His build is slender, but he can't take down a guy bigger than him with ease.

If you asks him 'is he popular or not', he will reply 'no, I'm just a normal student.' And because of his personality plus his look, every girl called him prince of justice. For boys, they called 'Mr. Justice' (In a mocked way). Despite that Hotaru still not had a girlfriend, or maybe not.

Today, Hotaru not goes straight to school like always, because he received a love letter. Hotaru look at it, and thought 'I will play your game, and then give you guys a good beat to death.'

Hotaru thinking about the duo pervert, those two always make trouble, and the one who have to clean those mess, is Hotaru. He thinks this is just another worst joke that they made for him.

When Hotaru comes to the parks, he saw a girl with silky black hair and a slender body, and it seems that she from another school. She looked so innocent to Hotaru, and he asks himself why she accepts those two to pull a prank on him. Then, a thought came up in his mind 'Maybe, they did something to her, so that she can't deny it and play alone with them. If they want an act, I will give one to them.' Hotaru smirk.

"Sorry, are you Hotaru Tachibana? I know that it's still early in the morning to ask you to come here."

"Don't worry about it. So anyway, what you call me here for?"

"Tachibana-kun, are you seeing anyone at the moment?"

"Not really."

"So, would you mind going out with me?"

'I know you guys hiding and giggling somewhere nearby. For now, I will pretend to play your stupid game.'

Hotaru smiled gently and answer.

"Okay, let's go out a date. And I know it's too late to ask, but what's your name?"

"My… my name is Yuuma Amano. This coming Sunday, are you free?" She stammers.

"Of course, I'm free. I will meet you up at the plaza."

"That's sound great, and here's my number." Yuuma give Hotaru a piece of paper while bow her head down, and then she left.

"Oh, it's Mr. Justice, this is my first time see you come late for school." Motohama smirk.

Matsuda and Motohama have always jealous Hotaru since first met. But for some reason, they attaches to him, not only that they shared ero DVD to Hotaru, and asked him to join them.

"Don't tell me that you just masturbated before came to school."

When Matsuda said that, every girl in class boos at him.

"What are you saying? Don't compare our prince to you guys."

"What? Even he's a prince, he's still a guy, you know. Don't let his appearance fool you, maybe at home, he also have a collection of porn hiding somewhere in his room."

"Is that your last word?"

After Matsuda finish, he realized that he just say something shouldn't said. But it's too late, all the girls' eye on them, right now, they can only pray to wait for their death.

"Please save us, Hotaru-kun." Matsuda said with tear in his eyes.

"It's okay, I don't mind about that at all."

The entire girls push Matsuda away, and surround Hotaru desk.

"Hotaru….!"

"You're truly an angel!"

Once again, those girls head over heel for Hotaru, for those boy, well, probably they crying from their heart.

Now, it's lunch time. Like always, the duo is come to their secret place to take a peek at kendo girl club, but they saw Hotaru is sitting with his back against the wall, waiting for them. Matsuda angrily scream at him.

"Damn you, Hotaru. Can you just leave us alone?"

"I, Tachibana, do not condone any evil deeds!"

"Like I said, we just want to take a peek, it's not like we do something evil, and no one get hurt because of it anyway."

The duo pervert look Hotaru with fire in their eyes, but Hotaru's eyes is cold like stone, there's no emotion in it, and seem liked he doesn't care to what they said. He sighs.

"Tachibana know, but there's one thing I want to ask."

Hotaru show them a love letter, Motohama look at it with confused.

"Love letter?" Matsuda scream in scared. "Don't tell me that you into these kinds of things."

"Stop your stupid act! I know your game. You put the letter into my shoe locket just to mess with me, not only that you ask a girl from another school to put an act."

"What are you saying? Are you trying to show offs?"

"So it's not you guy."

"Why would we do that? Even us has a pride, you know. And there's no way, we ask a girl to go out with you."

Hotaru nods in agreement, he know them since first year. They maybe perverted, but there's no way they would do that.

"Then, can we take a peek?" Motohama asks.

"No, but Tachibana will leave these matter to those girl who have a little problem with you guys."

"You evil…"

"You're a traitor of everyman dream."

Those two run off with kendo girl club chasing behind them.

Finally, Hotaru have some time to take a break after lunch. Lying down on the grassy ground near the old school building, Hotaru pond in thought what he should do on this Sunday 'Should I just call off the Sunday, if I do that, it would be rude to her. Maybe after the date, I should just deny her.'

"What are you looking at, Rias?"

A girl long black hair tied in along ponytail walks to her friend. Looking outside the window and gave a small grin. "Isn't it Tachibana from 2-B class? Don't tell me you interesting a guy like him."

"What do you mean by that?"

"Don't mind me, but what about him?"

"No, may be it just my imagination. For now, we just watch and see."

"Good bye, Okasan."

Hotaru's mom just standing in silent watching his son, and giggles.

"Good bye and Hotaru next time you should bring a girl home, or a beautiful wife."

When Hotaru's mom said that, his face turn red and he left in hurry without replying.

"Hoped that the girl he dated is an angel."

As she imagining the future daughter-in-law what is she likes, the phone started to ring.

"Ara, I wonder who's calling?" She picked up the phone. "Moshimoshi."

"Kae, how are you doing right now?" A man voice speaks up.

"Sou-kun, I miss you so much. Where are you?"

"Right now, I'm at American. Anyway, where's Hotaru?"

"Sou-kun, don't be so cold to me. Every time, you call back, the first thing you ask is always your son." She puffs her mouth.

"I'm sorry, but I don't have time. What's he doing right now? I need talk to him."

"He's off, seem like he had a date with a girl. I'm so happy, when see my son dress up like that."

"Kae, there's a package I send for him. Make sure that he must the one open it."

"Hai, hai, you don't need to tell me."

'I wonder if she misunderstood when she saw me dress up like this. Maybe I should go home, change clothing.'

Hotaru wear a simple black mid sleeved shirt, and a pair of white pants. But, he could feel everyone's eyes looking at him, some girl run to Hotaru and asks go out a date with them.

'I think I wear this simple enough, but it seems not.'

"Please check us out."

A girl dressed up in a bat theme costume gave Hotaru a suspicious leaflet. It was an occult-looking thing with a weird magic-circle and a sentence "Your dream will be grant!" – written.

"Sound like a scam."

When Hotaru is about to throw it away, Yuuma called out.

"Hotaru-kun!"

Follow his instinct, Hotaru put leaflet in his pocket and waved back at her.

Yuuma casually wrapping her arm around Hotaru's, and lead the way. They went check clothing store, having a look at decoration. At lunch, they ate at family restaurant. Hotaru not say anything much, he just let Yuuma enjoy the date.

At school, he just treat girl normally like a friend. But when someone asks him out, he always turn them down. Now, inside his mind, he thinks how he should deny her.

When Hotaru pond in thought, Yuuma let go of his hand and she is standing before the fountain.

"It sure was fun today."

Hotaru looks up at the sky, it was already afternoon. They are at the park that is away from the town. There is no sign of people, and no one is here beside them. For Hotaru, it's a best chance to tell Yuuma that he doesn't want to be her boyfriend.

"Yuuma-san, I know that we just met recently. But, I must deny."

"What are you saying? I know you thanks to my friend from your school, I ask her to send you the letter. But, how could you turn me down after the date?"

Hotaru panic, he saw Yuuma look like about to crying anytime. Yuuma hang her head down.

"I know. This is my fault, I'm sorry. But in return, I will do anything you ask, as apologize."

"Really? You will do anything I said."

"I will do anything, so can you tell me."

"Could you die, please?"

"Are you joking? I know that I shouldn't say something like that. But, is there something else I could do for you?"

"Will you die for me?"

She clearly says it to him again, while laughing. Her cute looking eyes change into cold scary eyes, her mouth is forming a cold smile.

*FLAP* Black wings appear from her back.

She then starts to flap her wings. The black feathers float in the air and then drop down to his feet. Before Hotaru could react, he feels a pain from his stomach, and he looks down see a spear that made out from light, had pierce through him.

"I must thank my friend to send you that letter."

"Why…? *cough* why you do this to me?"

Hotaru asks while he coughing blood out.

"Sorry, you were a threat to us, so we decided to get rid of you early. If you want to hold a grudge, then hate the God who put the Sacred Gear inside you."

'What is she saying?'

Hotaru can't even ask her a question and he's in a state where he's down on the ground. Her footsteps get further away from him. At the same time, he started to lose his consciousness.

'I can't die, not right now. If I want to die, I must die in a hero's way, not like this.' He thought to himself. 'I don't want to die, when I don't know the reason why. And I can't let the devil defeat me like this. If I was to be reborn, I wish I had a strength that can fight and protect the other.'

When Hotaru about to pass out, he saw a red magic circle appears on the ground, and familiar crimson-haired girl came out.

"So you were the one who call me." She knelt down and turned Hotaru's body around and lays his head of her lap.

Rias pulled out a chess piece, a pawn. Suddenly, Hotaru took her hand and grip it, Rias startled and look at him.

"I will break your hand, before you could finish me."

Hotaru stares Rias with deadly eyes, but there's no soul in them.

Rias can't believe in her eyes that he still have some strength left in him, and right now, in Hotaru mind, he can't only think about the killing and he doesn't care whoever approach to him.

"I'm not here to kill you."

"How can I believe you? You devil in human form."

"I won't let you die. So trust me."

Hotaru went silent, and let go her hand. Rias took the chess piece and started the ceremony.