Shinwa Densetsu no Eiyuu no Isekaitan - Volume 6, Chapter 3 – Unquenchable Hatred, Part 2

Wei Yuewu is the unloved daughter of the powerful Marquis Hua Yang. On her way back to the capital city to marry her fiancé, she becomes the target of a ruthless assassination led by her fiancé, Marquis Jing Yuan. With the help of the Prince of Yan State, she narrowly escapes from one disaster after another and returns to the capital. Determined to avenge her enemies and unravel the mystery surrounding her engagement with Marquis Jing Yuan as well as the death of her mother, Wei Yuewu makes a deal with the Prince of Yan State. However, just as she has triumphed over all her enemies and is about to reach the acme of her life, she deliberately destroys her own future and becomes an exile of her own…

- Description from Novelupdates

Stealing Heroine from Protagonist with SystemWARNING MATURE CONTENT!!!!!R-18

King Grey has unrivaled strength, wealth, and prestige in a world governed by martial ability. However, solitude lingers closely behind those with great power. Beneath the glamorous exterior of a powerful king lurks the shell of man, devoid of purpose and will. 

Reincarnated into a new world filled with magic and monsters, the king has a second chance to relive his life. Correcting the mistakes of his past will not be his only challenge, however. Underneath the peace and prosperity of the new world is an undercurrent threatening to destroy everything he has worked for, questioning his role and reason for being born again. 

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