I created my own system - Chapter 287: He went crazy

What would happen, if one day fantasy collides with reality?

- Description from Novelupdates

In the year Stardate 1, mankind entered the interstellar age, with interstellar migration, spaceships, alien races, and outer gods...arriving one after another.By the year Stardate 717, Fang Xing looked out upon the cosmic backdrop teeming with dense armies of foreign races and declared that all aliens, cultivators, tentacles, esoteric teachings, and evil gods would be intimidated by his supreme talent and smashed to pieces with his iron fist...Well, this is actually the story of a transmigrator, who whimsically dominates many different worlds with the help of his professional panel...

In the 5th year of Konoha’s founding.The battle between Hashirama Senju and Madara Uchiha at the Valley of the End had come to a close.In order to treat his elder brother’s injuries, Tobirama Senju resurrected a medical ninja from ancient times, hoping that this individual could prevent the injuries from shortening his brother’s lifespan.This medical ninja’s name was Emiya Shigen.