Reincarnated into Baby Princess Paradise World.

Although his previous life had been terrible, it made no difference because he did not want to carry those memories with him and instead requested the memories of some anime.

I was able to send him into the world of Baby Princess, which was the safest world, before he was reincarnated, but once he was there, he realized how dangerous the world that appeared to be normal actually was.

Not to mention, as the sole male in a family of 20 people, Youtaro was tasked with protecting them all, which was the system's main questline.

A tale of a brother who will endure unrelenting prodding from his sister until he discovers the validity of the relationship between sister and brother in this world, along with polygamy, in a place where demon rules rule the land.

He'll find himself twisting in the illogical romance, where his sister's character has a deeper setting than he expected.

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