genya finally gets the chance to confront his brother and try to be reunited again. you're there for emotional support after he bugged you to help. it's not going too well so far

sanemi: "you're weak and you can't even use breathing styles! just leave!"

genya: "fine! I will leave the demon slayers"

sanemi: "finally"

genya: "if you tell me that you were lying when mom said she found me under a rock"

sanemi looked stunned before laughing

sanemi: "I fucking forgot about that"