Reincarnation in DxD with wishes

Theo is sitting in class, listening to the lesson. Despite being boring, he turns his head to look at Dick Grayson sitting in the back row. Noticing that Dick has a well-toned physique, Theo thinks he must be Robin (he hasn't become Nightwing yet).

Dick also looks back at him, likely evaluating Theo. However, Theo doesn't find this particularly enjoyable. When he looks around, he sees that most people are either focused on the lesson or engaged with their phones.

For Theo to survive in this world, he needs money. After all, money can open many doors. Therefore, he contemplates what he should do and realizes that becoming a mercenary might be his best option. However, this could make him a target for assassins. Still, he isn't afraid of them right now; his current fears are figures like Darkseid, Brainiac, and evil gods. Reaching their power levels will take time.

When class ends, Theo heads to the library to search for a few books because he knows he could become someone important there. He used to be friends with Barbara before; at least they knew each other well. Theo spots Barbara from a distance but pretends not to see her. Then, Barbara comes over to him.

Barbara: "How are you, Tatsuya? We haven't seen each other in a long time."

Theo: "I'm good. I've been really busy lately, you know."

Barbara: "I'm sure you'll manage. You've always been good at finding solutions."

Theo: "Thanks, Barbara. What have you been up to lately?"

Barbara: "You know me, just working at the library as usual. I'm busy with other things in the evenings."

Suddenly, someone tries to touch Theo's shoulder from behind. He steps aside, and Barbara looks surprised. The person extending their hand is Dick.

Dick: "Barbara, aren't you going to introduce me to your friend?"

Barbara: "Yes, this is Tatsuya. I mentioned him to you."

Dick: "Oh, you're Tatsuya? How interesting! I want to be friends with you. I'm Dick."

Dick extends his hand to Tatsuya.

Theo shakes his hand.

Theo: "Nice to meet you."

Dick: "Nice to meet you too."

Barbara senses a strange atmosphere and interjects.

Barbara: "Come on, what's up? You just met."

Theo turns his head away.

Tatsuya: "Anyway, Barbara, you should get back to work. I have something to take care of; we'll catch up later."

Theo leaves without letting them say anything more. He had another reason for wanting to get away; he felt like he was being watched and didn't want to involve Barbara unnecessarily.

He then entered an alley and suddenly sensed danger. As he slightly turned to the side, he saw a kunai heading towards him and caught it, beginning to examine it.

Theo: "Wow, it's been a while since we've seen each other. Is this how you say hello? I'm so disappointed."

Four assassins appeared, and one stepped forward.

Assassin 1: "Yes, traitor. We've been looking for you for a long time."

A smile appeared on Theo's face.

Theo: "Yes, yes, I've missed you too. Now I'm returning your gift."

Before anyone could move, Theo threw the kunai at the assassin's head, and one of the assassins behind him fell dead instantly.

The remaining assassins didn't feel the need to say anything further, and all drew their swords. One quickly stepped in front of Theo and swung his sword horizontally, but Theo just laughed.

Theo: "Hey, kids, be careful with those things. You might hurt yourselves."

Theo grabbed the assassin's wrist and then punched him with all his strength. The assassin's head exploded, and the remaining assassins were in shock. Only two remained, and without hesitation, they tried to attack.

At that moment, the assassin's power is raised much more, and there is a pale light that surrounds him. Theo saw it and dodged to the side, but the other assassin knew this, and while he was sure that he had cut Theo, the other assassin was surprised because Theo used the wall and then bounced off the wall and threw a kick at the assassin. Fortunately, the assassin protected himself. The assassin's backbone was broken; he fell to the ground, and then Theo took the man's sword.

 They weren't expecting his quick moves. 

Theo picked up the assassin's sword.

Theo: "Wow, what a nice sword. This is mine now."

The remaining assassin was furious.

Assassin: "You little brat, the assassins' guild won't let you go."

Theo then reached out and threw a web at the assassin's hand, immobilizing him and covering his body with the web. He stepped in front of the assassin.

Theo: "Let's see what you know now."

The remaining assassin was angry.

Assassin: The League of Assassins will not leave you

Theo: right, hail Hydra or something, now shut up.

Theo: where is Ras al Ghul, talk Now.

Assassin: fuck off!!!!!!

Then he tried to spit on Theo, but theo dodge it.

Theo: come on, but cooperate, you're making me wait.

Then he punched his stomach with a little power, and the wall behind the man was broken, the assassin was almost fainting, and Theo slapped him.

Theo: hey, hey, it's not time to go to bed like this

Assassin: I swear I don't know anything

Theo raised his hand and hit the man's head with full strength, and the man's head exploded, Theo absorbed all the bodies and all their memories absorbed by Theo, the guys seriously didn't know where Ras al Ghul was, all they knew was that they knew was making a deal with the ras al ghul and joker, and they were preparing to do contract with someone strong to make Theo die.

Theo grew more, and now Theo absorbed all the bodies, so his muscles were more intense, he was stronger and more flexible, now he had to grow taller. He reached 190cm, his weight was 85KG, and the oil ratio was very low. And he absorbed ki from the assassin's body.

But Theo thought of something: he could have used the chat group to be powerful in this world for a long time.

After a long time, Theo entered the chat group.

(send power stones, or I will not update UMU)