Global Aberration: I Am at the Top of the Food Chain

This book is used for pen practice and has been hidden. [Microgram Series] [Not So Normal Protagonist] [No Female Protagonist + Micro Group Portrait] "Did you just say you wanted to report a crime?" "Yes." "You were chased by a wall of fog?" "Yes, it appeared again just now. I think it wants to eat me." "Have you ever noticed any other abnormalities?" "Yes!" "What?" "There's a door in my house that can't be opened." "Can't you find the key?" "No, the door is unlocked."