Reincarnation in DxD with wishes

Since Theo has traveled in time, he is now going to Ireland and enters the region of the Celtic gods, trying to locate Scathach.

Bingo finds her location in a small village, and Theo teleports there.

Then he looks around the village, resembling medieval towns, although he hasn't seen them before. Theo then begins to search for Scathach, but with so many people in the village, it's not easy to determine where she is. While looking around, he sees a child stealing an apple and quickly moves away from there. The shopkeeper shouts after him.

Shopkeeper: "Come here, you little thief!!! Pay for what you stole!"

Then Theo looks at the shopkeeper.

Theo: "Can I pay for him instead?"

Shopkeeper: "Of course."

Theo creates half a kilo of gold and hands it to the shopkeeper. The shopkeeper is astonished to receive it and thinks that Theo is a god or something similar, given that gods were known in those times. The shopkeeper falls to the ground and starts praying to Theo.

Shopkeeper: "Thank you, my lord."

Theo ignores him and leaves. He appears where the child ran off to and starts to examine the child. The child has purple hair and is quite cute, standing at 150cm tall.

Theo looks at her, and the girl is scared but doesn't show it.

Theo: "What's your name, little girl?"

The girl responds: "Scathach."

Theo is happy because he found his target.

Theo then looks at the girl and smiles: "How about becoming my daughter?"

When Scathach hears this, she is surprised and looks at Theo, seeing him as quite handsome and young.

Scathach: "I have conditions for this. If you accept them, I don't see any problem in coming with you."

Theo: "State your conditions."

Scathach: "If you won't stop me on the path to power, I accept."

Theo: "Ohoho! So, you want to get stronger? That's an easy task for me. You'll accept, and I'll make you the strongest after me."

When Scathach hears this, she is surprised and gets defensive.

Scathach: "Who are you, and what do you want from me?"

Theo is even more surprised when he sees this.

Theo: "I'm not a god, but I'm similar and stronger. I'll train you, but you need to explain your hatred towards the gods."

Scathach sighs and realizes she needs to tell her story since the person in front of her is powerful, and she feels he can even kill her with just a look.

(There is no information about Scathach's childhood and her parents, so I used my imagination.)

Scathach: "My father is a human, but my mother is a goddess. She abandoned me on the day I was born she didn't want to kill me but I was have twin she killed her, but she left me alive. So, I vowed to get stronger and kill my mother."

Theo is horrified to hear this because there is no information about Scathach, only about her children and other details. 

Theo: "Okay, I'll give you this power, and even more, but I hope you can handle it."

Scathach is pleased to hear this, and Theo takes her hand, leading her away from the village to a deserted mountainous area.

Scathach: "So, where's the house?"

Theo raises his hand and creates a small house, surprising Scathach.

Theo: "We'll live here from now on. I'll show you to your room, and don't forget to take these."

Theo creates many clothes for Scathach and hands them over.

And thus, Theo shows her around the house, explaining everything. Scathach takes a bath, eats, and goes to sleep. During this time, she doesn't talk much.

The next day...

Theo stays awake all night and sets up barriers around the house. He goes to wake up Scathach, and they head to the backyard.

Scathach is quite curious about what will happen, but suddenly, Theo speaks.

Theo: "Your body parameters, your strength, and your muscle mass have all been analyzed. The most suitable training has been decided for you. I'll make you a master in all weapons, and I'll teach you all the runes, ancient and modern ones."

Theo changes his serious tone and smiles now.

Theo: "And from now on, you'll call me Shishou, and objections are not accepted. I won't tell you my name, and if you want to know my age, you have to earn it, so get stronger."

Scathach bows her head: "As you wish, Shishou."

Theo thinks: {Finally, I heard this word from her.}

And from now on, Theo creates a different dimension. Inside the dimension, there's only a pure white void, with just the house inside. Inside, time passes much faster than outside. Inside, one year passes, while outside, only ten days pass. This is deliberately done so that there's no change in the perception of time.

And thus, the time for training begins...

(If you liked the chapter, don't forget to comment and send power stones.)