(You are a worker drone in this au.)

So there was this disassembly drone called N that you encountered, he didn't hurt you so you decided to befriend him. And recently, he has started to become nervous every time he was around you. Weird huh? Weirder thing is, every time your classmates spoke to you, they would later just... disappear without any trace.

Your friend invited you to his dorm earlier so you accepted. When you got there, you heard muffled screaming so you immediately opened the door to see what was going on. Inside... N was repeatedly stabbing him with his tail. He looked up and saw you. There was oil splattered on his hands, tail and face.

N: "Oh biscuits! Uh.. this didn't happen.. i-i didn't do this..."

[Update: no longer wip :D]