DxD: Milking System

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*****

"Your sister?" That was what Jin asked back when he was a bit surprised by Koneko's question.

'I don't think I had met her sister.'

Obviously, he didn't remember meeting another white-haired girl with the family name Toujou. If so, he would certainly remember such a girl. White hair was uncommon in Japan, and anyone with it would stand out from others.

More so, Koneko was a Devil, a reincarnated one. She was a part of Rias' peerage. Surely, if she had a sister, Rias and the others would help the girl find her sister.

Because according to Sona, the Gremory family was always a kind one among Devils. They treated a member of their peerage like a family, so they always helped each other in need.

'Or her sister's appearance is different from hers? That could be the case as even I and Issei aren't really similar to each other. Our hair colors are different too, even though we are twins.'

Of course, he also thought of that possibility. He also didn't forget that Koneko said she was following him on Rias' order earlier. He would need to punish that red-haired girl after he helped her.

But after thinking of someone similar to Koneko, he wasn't able to think of anyone from his memory.

'It's no use. The girls that I met were all strange. A Fallen Angel, a High-Class Devil, a nun, and a cat with two tails. I have no reincarnated devil that talked to me recently except for Tsubaki and Koneko-chan. Of course, Tsubaki is also out of the question. If she's Koneko's sister, then Koneko won't even try to find her.'

"Yes." Koneko answered. She leaned a bit closer to his chest and sniffed him. Her nose moved cutely. "I remember this scent. It no doubt belongs to my sister."

"Is that so? Maybe I walked past her yesterday or this morning? Because I don't know anyone with the family name Toujou besides you, Koneko-chan."

"… I see. I am sorry for disturbing you, Jin-senpai. I take a lot of your time." She sounded down as she stepped back a little. Her innocent crestfallen expression somehow managed to stir Jin's heart a little. He honestly felt bad for her.

"Don't worry about it." Jin smiled. As he said that, the bell that indicated the class was about to start rang from inside the main building.

Ding Dong!

"I think we should head to our classroom now."

"Un. See you again, Jin-senpai." Koneko turned around and walked away after she regained her stoic expression.

Jin could only smile while seeing her. She was like the best little sister material. That was why she was called Kuoh Academy Mascot by a lot of people.

But Jin needed to warn her about something.

"Don't follow me again, okay? Or I will be angry at Rias!"

Koneko didn't answer him, but he saw her nod a little. That was enough for him.

"Now then, I should head to class too. I never thought I would spend my morning walk talking with Koneko-chan. I thought she hated me because she never talked to me that night."

***

The classroom was already filled with people. Even Issei was already seated. He somehow had a stupid smile on his face.

Jin entered the classroom almost at the same time as the teacher. Fortunately, Jin wasn't in trouble as he would consistently score the best, so the teacher let him off the hook for free. Being a good student all this time was worth it. His reputation always helped him in everything, including getting a girl to be milked at the start.

The class was boring for him. Just sitting there listening to the teacher didn't do any good. He already covered all materials for the year. He forgot some of it because he didn't study at all lately, but it would still be easy to get the top score for the year.

All the time in his class, he didn't let his guard down. He had learned that something could still surprise him when he let his guard down, so he actively kept track of his surroundings using Senjutsu.

It ended after roughly two and a half hours, and a 10 minutes break was given to the students for those who wanted to go to the bathroom or rest after a long class.

Using this chance, Jin approached Issei's seat, who was still smiling like an idiot. His friends, Matsuda and Motohama, even went to the corner and glanced at him strangely.

Because Jin wasn't in the class this morning, he didn't know why his brother was like that. He stayed the night in the hotel; maybe something happened to him and Asia. To get more context, he approached Matsuda and Motohama and asked.

"Do you know why my idiot brother is like that?"

"Huh? We don't know."

"Yeah, that idiot has been like that since he arrived at school. Did he get a girlfriend or something?"

Matsuda and Motohama spoke silently as they turned to Jin. Their tone was rather unfriendly, mainly because they envied Jin for being a popular guy among the girls.

"I see." Jin nodded slightly. He also felt their enmity, so he didn't bother to talk to them any longer. He approached Issei with a steady step and stopped beside him.

"You look happy, Issei."

Issei turned to him and beamed with a big grin.

"Yeah!"

"What happened? Did things go well with that girl?"

"Hehehe, you can say that. She opened up to me quite nicely and made breakfast this morning."

Hearing that, Jin's smile disappeared from his face, "That's it?"

He couldn't believe how passive his little brother was. He knew he was kind, but he never thought he would be indecisive.

"You're beyond help, Issei…"

"What do you mean? Don't tell me. You said you want me to bang her? You're just like Ddraig."

"So it did tell you to bang her… Then you're really beyond help." Jin could only sigh in plight, knowing that his brother had become such a vegetable. If he knew he would turn out like this, he might not try to change her perverted behavior and let him go wild, only reining him when he went too far.

"Well, you do your best. I won't say anything about it."

"That's what I plan to do. Rather, where were you going yesterday after dropping me off at the hotel, Nii-san?"

The conversation went smoothly again as Issei changed the topic.

"About that, I–"

When he was about to say something to Issei, he felt an unfamiliar energy appear in the direction of the Occult Research Club, which was located in the old school building. He immediately turned around in that direction, confusing Issei.

"What's wrong, Nii-san?"

"Sona… You said this will happen tomorrow." He smirked as he muttered those words. Then, he turned to Issei and said, "I have some urgent matters to do. Do you want to come with me or stay here?"

Urgent matter. With that, Issei knew that it should be related to Supernatural.

"I am coming."