Randy Cunningham and the Ninja's Seven

Randy Cunningham and the Ninja's Seven (or Randy Cunningham Doujinshi) is an American manga series created and written by Clayton East. Some of the elements are based off the american animated series by Jed Elinoff and Scott Thomas

Summary

After four years of being the Ninja of Norrisville, it was time that he hang the mantle and erase his memories of being the Ninja and himself, forcing him to move away from home as soon as he graduated from high school. With no memories from what happened to him before he came to Ninja City, a city in the middle of the country that the other cities surround. Then a strange box came to his door and when he opened it, came a ninja mask that gives him extraordinary powers. since then, he begins to fight crime and corruption in the city by himself.

After attending Ninja City University, Randy gets met up by a group of ninja warriors just like him. He then learns that he's the member of the Ninja's Seven, a group of vigilante ninja warriors founded by the First Ninja who defeated the Sorcerer. After telling him this news and of his memories being wipped years ago, Randy goes on a quest to find his old self while fighting along side his new teammates.