Sato Imai

Sato Imai is a reverse-isekai Vtuber, he is a physical fighter and adventurer who specializes in wielding swords, despite his specialty he still prefers trying to use magic even though the outcome is always unpredictable due to his lack of proficiency with magic. His body is not in tune with magic. 

He accidentally sent himself to Earth from his home world, Auravalius after trying to use a forbidden teleportation spell. Due to his lack of proficiency instead of sending him to his desired destination it teleported him to a new world entirely.