"A Villain? Then I'll Flirt With All My Might! ~I Was Reincarnated as a Rival Villain Prince, So I'll Flirt With All My Might"

I was reincarnated as a villainous prince in a game. No matter what I do or how hard I try, I'm fated to be executed or assassinated and killed. Even if I do nothing, I'll be easily killed. What can I do to avoid being killed? This contains brotherly love, but please be cautious if you're not comfortable with BL. This work is also posted on other sites.