A phase a man enters when he has his heart broken, or realizes some of these hoes be playing games.
Once he enters this phase there's no turning back. He will do everything he can to better himself, and never be fooled again. He is untouchable.
Don't get this confused with the villain arc. This is an era where he doesn't seek revenge, he only wants to leave it all behind and better him self for the great things ahead in his journey.
His interests typically consistent of elden ring or any other souls like game, Berserk, Working out, guitar playing, etc.
Yo bro that girl really fucked him up I won't be surprised if he enters his dark knight era.