Ji Chunqiu was a deranged troll who spent all his time on vile online forums. He loved stirring up trouble, driving traffic, and manufacturing drama, pretending his daily antics were just another mouse person's breakdown. He was also an anti-otaku intellectual, often posting about how anime fans were ruining people's lives. His hours of intense online surfing brought him immense joy.
One night of staying up late and surfing the internet sent him transmigrating into Bungo Stray Dogs, a series famous for its fanbase, which he deeply despised.
The moment he opened his eyes and saw that kind-hearted Russian, Ji Chunqiu thought in despair, Oh no, I've really become a little mouse.
When he met the pitiful clown who was always having a breakdown, he felt remarkably comforted. After all, a clown was far more pathetic than a little mouse.
As for that loathsome little brat Dazai, Ji Chunqiu just wanted to trade funeral money for a few years of his life.
He really couldn't stand staying in this utterly vile Yokohama for another second.
PS: The protagonist's morals are skewed.
Theme: The pitiful life of a little mouse