Time Travel for All: the Rules of Survival in Another World

[Full time travel + supernatural battle + no system] At the beginning, he spoke out against bullying, but was expelled from school? ! What's wrong with this world? "Why do you know my name?" Although he traveled through time but lost his memory, Shinichi asked the same question when facing his former classmates and becoming a [criminal] in another world. This is a brand new world, and a world that does not welcome travelers...