[Crossover] There's Something Toxic About Our Dorm Bathroom

Four brothers, each with a past behind his identity, are brought together by fate. For some inexplicable reason, the dormitory toilet seems to connect to other worlds?!

Big Brother: Aaaaah! A female ghost!!!

Second Brother: What the hell! I'm out of here!

Third Brother: Silence. Turns over, gets out of bed, and bolts!

Fourth Brother: ...It's a person. [Heh]

Please be patient with a new writer. There may be OOC, so if you don't like it, please don't flame me. Thanks :) I'm posting this as I write! These are a series of short stories, each chapter is very short, and it might get abandoned or wrapped up at any moment?

Once college ends, it's time to enter society, hehehe...

The toilet connects one-way from another world to the modern world. There are certain rules, and they're pretty complicated, so I'm too lazy to explain them in detail. If necessary, I'll explain later.

Everything is fanfiction. The characters belong to the original work; any OOC is on me.