As a baby

Author's note: All characters involved in sex are 18 or above. The timeline will be adjusted.

You chose to be reborn. The family you reincarnated into was Yotsuba.

You didn't know how much time you have spent in darkness, but it passed so quickly.

"I can see the head... Miya-sama, please push!"

"Congratulations, Miya-sama! It's a boy!"

The midwife held you and talked to a beautiful woman, who supposed to be your mother. However, she didn't hand you to her, but an old man instead.

"Eisaku Oji-ue, can you foresee the potential magic skills of this child, please?"

Hey, what are you doing? Shouldn't a child be nursed by his mother first? This old man isn't even my father!

You felt a bit uncomfortable when the old man touched you. You could tell that he was analyzing you by magic. You noticed there were a lot of people surrounding, so you didn't want to raise suspicion by blocking his magic.

After a while, the old man finally made his judgment:

"This child has the power to destroy and recreate the world.

We want to create a superhuman guardian, but we end up bring a Demon God to this world.

Maybe we are wrong. This child is the Sin of Yotsuba and we should erase it."