Reborn in Japan as a God of Killing

Due to an accident, I traveled to the Edo period of Japan! As a homeless ronin, he only has a knife, a secret book, and a system that allows you to level up by killing enemies! … "Who are you?" "Me? Haha, I'm just a down-and-out wandering samurai. You can call me Aoki Shinichi! You can also call me Jiulongsai!" "What!! Are you the Jiulongzhai who killed ninety-nine warriors?!" … This is the story of a wandering samurai, Shinichi Aoki, who became the strongest god of death! This novel and its characters are purely fictitious. Any similarity is purely coincidental and should not be imitated.