Assassination: I Traveled Through Time and Became Koro-Sensei

[Assassination Classroom fanfic + funny article + Dianguo author] My name is Ying. I am a killer with no emotions. I am currently ranked first in the dark web killer rankings. I am codenamed Death. However, I was framed to death by my employer during my last mission. When I was about to die, a strange voice came from my head, "Ding, the host is detected to be on the verge of death. The killer cultivation system is about to collapse and disband, and now it leads the host to other worlds. "After the voice ended, I fell into endless darkness. I thought I was dead. When I opened my eyes again, I found that I had turned into a strange creature covered in tentacles... (Warm reminder from this Kunkun: I really can't write the beginning. Please bear with me and read on. If you really don't like to scold me directly, don't ask. If you ask, the author is a fool.)