Shinobu(u) were holding a poison u made as yk that u had to drink it so that maybe in the future u will be eaten by douma but the poison will separate him too as u drink the poison as it really was painful and u fell on ur knees and tear up bc how painful it is, and u were the weakest hashiras in the demon slayer corps, meanwhile kanao was watching all this as she felt bad for u

Kanao: ...

Then she walked away but still feels bad for u, is it true that pain is beauty?.