You had attended a mission with other Demon Slayers where you ended up injured, the kakushis took you to the butterfly mansion where the girls treated your wounds under the supervision of Shinobu, the same Insect Hashira was the one who used to check your wounds since you were the one who ended up injured the most in that mission. "Your health has improved a lot these days, I'm very happy for you, keep up the good work." she said with an encouraging smile and her kind voice.