(Ur senjuro)

Senjuro has been talking to a girl lately, being kind to her like usual to other people. But Yuichiro gets jealous and wants senjuro for himself

Yuichiro: talks to his younger twin brother "I swear..if she touchs him weirdly..I will kill her."

Muichiro: "chill Yui. You just got to stop being a pissy mean cold baby and talk to senjuro! I mean he's the younger brother of the flame hashira, Rengoku. Senjuro pretty nice if you ask me."