A girl who is not a supernatural person begins her journey to seek death.
You think I am an ignorant little girl from the countryside, oh no, in fact I am a well-behaved female student in the city; you think I am a well-behaved female student in the city, oh no, that is not right, in fact I am a street fighting bully; you think I am a street fighting bully, oh that is even more wrong, in fact I am a traveler from a parallel world.
Oh, I'm wrong again, I'm not deceiving your feelings, I'm just an ordinary supernatural detective. The only difference is that I won't die. Oh, and I am "relatively" stronger.
Purpose: peaceful coexistence