Villain Chat Group: How Is This Protagonist So Wickedly Righteous?

[Villain chat group + protagonist + gathers good and evil alike + anti-cliche + wickedness turned to righteousness + Homelander]

After twenty-three years of ordinary life, the System pulled Ji Ran into a villain chat group. There was Ji Boda, a younger brother with no blood relation to him; a young lord from a powerful clan who stole his fiancée; an otherworldly fiend who possessed someone and was reborn...

Damn it, since I've been reborn, this time I'll make those damned protagonists... Wait, no, I haven't been reborn. I'm the protagonist!

With every advantage on his side, and knowing what the villains would do next, he made a vow: from this day forward, he wouldn't eat beef!