Naruto: Immortal Me Takes on the Cleaver Head-On

[Harem; this is a slice-of-life story, and I may not be great at writing the battles, so please bear with me.]

Transmigrated into the Naruto world, he has an immortal body and has been kicking around the Konoha kindergarten and punching his way through the Konoha retirement home since childhood.

Ino: “I was here first, so how can you all be so good at this?”

Tsunade: “You little brat, I knew there was something off about you.”

Kurenai Yuhi: “No, Yu, we can’t. This isn’t right.”