Toradora! - Volume 3, Chapter 4

Upon meeting the girl who would become her adopted younger sister, the duke’s daughter Christina regained memories of her previous life. Through those memories, she learned that her new sister, Mishuli, was the heroine of a certain story. And though the story depicted a Christina who abused her sister, the real Christina turned into a siscon who spoiled Mishuli to no end.

The ordinary world is not ordinary, ordinary people are not ordinary, and safe places are not safe.

This is a story of a passer-by male protagonist who is entangled by various girls with strange hobbies or even non-human beings while surviving in the cracks and opening a harem.

- Description from novelbuddy

There are always four kinds of people in the traditional Mary Sue world. The Male Lead, the Mary Sue female lead, the woman who never wanted to see the female protagonist live a good life, and the infatuated man willing to destroy heaven and earth to get the female lead.

However, with the rapid expansion of the army of rotten women, there is also a growing type of character, and that is a man who is also infatuated with the male lead… This character is referred to as the gay guy. They share the same infatuation like the second man, also has a tragic end and works together in hindering the male and female protagonist’s love.

Fan Yuan has walked in every time and space playing the gay man. He had always enjoyed it, until one day, with superb acting, he made the male lead bent. O (╯-╰) o

Fan Yuan (affectionate confession): “I do not want to be your brother, in fact I have always loved you.”

Someone (fondly looking back): “Me too.”

Fan Yuan (⊙_⊙): “…”

You’ve got the wrong line, bro!

- Description from Novelupdates