Naruto: Unlocking Kaido Template - Chapter 74

She was an illegitimate daughter in a wealthy family, with a lowly status. By chance, she discovered that her ex-boyfriend had sold her out. In order to hide, she accidentally injured him and fled in a panic. From then on, they were bound by an inextricable bond...

In a world where Beast Tamers command respect and wealth, Kai is nothing but a street rat, scraping by on the streets of Ashenford.Orphaned and despised by townsfolk, he's learned to expect nothing more than cold stares and cruel words.His life takes an unexpected turn when he stumbles across an injured beast deep in the wilderness.Kai nurses the creature, forming an unspoken bond that will alter his fate, and he begins to see the harsh realities of a world ruled by power, status, and secrets.

Reborn as a sword, he lived for hundreds of years, and then he occupied the body of a 15-year-old prince.

Oosuki Masato is an ordinary high school boy who is magically transported to an alternative world, but for some reason his doting, over-protective mother comes along as well.