A young man around his teens dressed in casual clothes can be seen playing a game on his phone. This young man is Reinhardt, a teen around 17 years old. He was a young man that just finished playing Metal Gear Solid: Peace Walker

"Man, after so long. I finally beat that Metal gear." Humming, the young man did several stretches before looking at his new PS4 and put on Ground Zeroes.

Let's just say, after finishing it... he was pissed. 

"Y)(U$@_)I)_+@!(@!O_I+@$(@$19)_(@$()@$($@(@$($+@!($@!_($!(_@(_$@(+@$(@!(@$!($!@" The young man started to curse as he watched what happened to his mother base. All those hours wasted! 

Why are we still here? Just to suffer! 

"Still playing as always?" Looking up, the young man saw a beautiful white-haired girl with blue eyes smiling at him. Her blue eyes shined with mischief as she saw the male lying prone on the ground in casual clothes. "Are you trying to seduce me, pervert~?" The girl said only to dodge a pillow with a chuckle. 

"Shut up." He grumbled as he sat up and looked at the girl. The two were around 17 years old with the girl dressed in a school uniform. "Besides, Your heart is already taken by her." The young man said lazily as the blue-eyed albino sat beside him on top of a pillow and took the controller the young man offered. 

"Is that.. Jealousy I hear?" The girl teased playfully as she nudged him with her shoulder. 

"Hah! Nope!" Popping the answer, the young man quickly ran a game that will be good for the both of them. "Besides, shouldn't you be going to St. Freya by now?" The young man asked as he chose a character in the fighting game. 

"Well, yes. But, we were wondering if you will be joining us for dinner later." 

"Huh, sorry. I have things to do later." He told the girl who pouted and started to repeatedly poke his side. 

"Come on, join us." The girl said, a pout on her face. 

"I have a job to do later." The young man said with a sigh. "Stop it, Kallen." The man told Kallen who pouted as she kept poking the young man.

"You're always busy..." Kallen pouted as she looked at him with puppy eyes. "Please, Reinhardt." 

"No means no." Reinhardt said causing Kallen to sigh. An idea formed in her mind as she leaned in and hugged his arm, pressing it between her chest. 

"I'll let you do anything you want." She whispered seductively as she looked at him with a smirk. this should work, after all...

Hearing this, Ren sighed and put his controller down, and smiled at her. Seeing this, Kallen smiled before pouting as a finger flicked her forehead. 

"No can do. I have a big job tonight, and I'm sure Yae will kill me if I try to do something to you." Reinhardt answered with a smile as he stood up and finished the first round of the game. "Besides, there's no way that's gonna happen." The young man said with a smile as he put on a comfortable hoodie missing the angry pout from Kallen. 

"Hmph, pervert." Kallen muttered quietly as she sulked. Seeing this, Reinhardt patted her head to try and calm her down. It worked at first but ended up with Kallen angrily biting his hand hard. 

A scream echoed throughout the whole house as a pair of pink-haired girls stopped what they were doing while the older of the two, a girl around 16-years-old sighed and shook her head. 

"It seems like Big sis Kallen just got mad at Big bro, Rein." The younger of the two said. She was a young girl around 10 years old with her pink hair tied into a ponytail. 

"Well, he is a pervert at times."  The older girl said with a smile as she heard the sounds of someone dragging another person. 

"Oh, you say that yet both you and big sister Kallen always steal his hoodie and that you took his boxers and used it as nightwear? What does that make you, Yae-nee-chan?" The younger girl teased, causing Yae to blush.

"Rin!" Yae shouted with a red face, making Rin smile slyly. Her shout alarmed the duo and they came down, Reinhardt was the first to come in, holding a hurricane revolver comfortably in one hand with a black handle with a purple blade. 

"Everything okay?" Reinhardt asked, a rather prominent bit mark on his right hand while Kallen sighed and dragged him by his ear to the dining table to eat. The young man groaned in pain as the weapons disappeared. 

"Huh, what happened to you big brother?" Rin asked seeing the bite mark from Kallen. Reinhardt smiled and rubbed Rin's head. 

"Nothing, a sexy fox just bit me." He said to Rin as he nodded at Yae for giving him a cup of coffee. Hearing this, Kallen glared at him and kicked his leg under the table. 

Rin smirked and looked at Reinhardt. Timing it right,

"Does this vixen have white hair?" The young girl asked teasingly as she looked at Kallen. "Will you punish her?" The young man was about to answer that only for Yae to gently flick her little sister's forehead. 

"Stop teasing Reinhardt and Kallen, Rin." She said with a sigh making her younger sister chuckle. 

"Oh, yeah. Yae, I won't be joining dinner tonight." The young man said making the pink-haired teen look at him sharply. "I have a job tonight and it might last for 24 hours." 

"When do you leave?" Yae asked as she sat down and looked at him. She should make him a lunch box. She knew where he worked and she can just take it to him later. 

"Around 3 in the afternoon. We have a client on the lab that needed my help." Reinhardt said as he started to slowly eat his meal. "I'll wait for Rin to come back and activate the system before I leave." A vibration came from his phone and he looked at it only to sigh. "I'll be going now." 

Reinhardt said with a sigh as he finished his meal. Standing up, the young man went back to his room for a quick shower. While he was upstairs, the girls looked at each other.

"Rein-kun has been going in a lot more shifts than usual this month." Sakura said as she ate her meal and stood up to prepare a bento for him. 

"Well, Reinhardt has always been a workaholic and he is the only expert in A.I. and Nanomachines on the lab." Kallen said as she stood up and helped Yae to prepare his lunch box/Bento.

"Big bro smells weird," Rin said as she put some rice in her mouth. Swallowing it after chewing it thoroughly, the girls looked at her. "He has this like very nice perfume coming off of him whenever he comes home. Maybe Big bro has a girlfriend." 

Hearing this made Kallen chuckle a bit nervously and drop a chicken on the bento while Yae broke the wooden chopstick she was using to decorate it. 

"Is that so?" Yae said with a smile that was too sweet before calming down once Kallen hugged her and kissed her cheek. 

"Yeah, I also heard him talking to a girl on his phone last night." This time, it was Kallen who pouted and got annoyed that her best friend was keeping things from her. No, she was not jealous or anything. 

Oblivious to what was happening, Reinhardt came down wearing a two-piece suit with an earpiece on his right ear and a pair of sunglasses on his face. He was carrying a black suitcase and wore a black wristwatch in his left hand. 

"Hey,  don't forget to activate the system before you leave, okay? Is there something wrong?" Reinhardt asked as he saw Kallen pouting at him, arms crossed under her chest making them look bigger. 

'Huh, did they get bigger?' The young man thought before he looked at her in the eyes. 

"Good luck with your date." She said with a huff, turning around and flicking her braid as she sat on her seat to eat more. 

"Date?" the young man asked, confusion marking his face. Noticing the pink-haired girl holding a bento, he smiled and received it but was confused as to why Yae seemed down. 

"Thanks for the bento," Reinhardt said with a smile as he gently patted her head and rubbed her head gently. "How about next time, the four of us go out. My treat." He said, trying to cheer her up. 

Hearing this, the girls perked up while Rin smirked evilly. 

"Oh, Rein. I found your boxers!" Rin said with a smile causing Sakura and Kallen to blush and glare at the girl. 

"Really?" Reinhardt asked only to have Sakura push him gently outside while Kallen covered Rin's mouth. 

"LOOK YOU HAVE A JOB STAY SAFE BYE!" Sakura said as he pushed her out with a red face. The pink-haired girl held a hand to her chest. It's not her fault that his clothes were comfortable. After all, both she and Kallen wear them in their rooms. 

Rin smirked at them as the little fox smiled and innocently looked at them. "So, want me to tell him about the time I saw you making out in his bed?" The young fox said with a teasing smirk, causing the two to blush and scream in frustration and embarrassment. 

Inside a Lab.

It has been a few hours now and Reinhardt was sure that the girls had gone to school already. The young man looked at the slime inside the containment facility. It was some sort of symbiotic life form that can merge with any being that can merge with any living being that it is compatible with.

"According to the overseer, it was produced by a black box filled with Honkai energy, yet it does not possess any Honkai energy, rather it serves as a deterrent or protection to the life forms it fuses with." Looking at his A.I. and beloved brain baby, Ultron, the young man nodded as he looked at the reaction it gave. It seems like it was calling out to him, 

"Hm... Ultron, mind doing some tests, mild only. No damage must be done to the subject." Reinhardt said as he looked at the 3d model of his baby. 

"Father, why not go home? I would be able to analyze this by myself." Ultron said as a figure formed in the air. It was of a small floating child on top of a disc with a knife on hand. 

"Well, I wanted to finish this," The young man said as he patted Ultron's head. The avatar smiled happily before jumping off his disc and landing on Reinhardt's head. 

"Father, do you want me to find you a wife?" The A.I. said causing his father to pause. What the hell? 

"Why?" The hell? How did Ultron know this kinds of stuff.

"I have gathered information and data that men with partners experience a higher rate of efficiency and effectivity during work." Ultron said as he stood up and landed on the table. "Besides, it will not be good for you if you always keep on working in the lab, father."

"... No thanks." Reinhardt said as he looked at the data he gathered. There was somethimg strange with the sample.

"Why is that?" Ultron asked as he looked at his father. "Is it because you are busy or are you scared of being killed by those two?"

"Of course." Reinhardt said as he put the clipboard down and did something that Ultron did not know would happen. "Besides, I already have a girlfriend." Reinhardt Crozzo, descendant of the Crozzo family, father of Ultron and A.I.s lied as naturally as breathing.

"They will be pissed." Ultron said.