Kokushibo had a tight hold on you, walking trough the infinity castle to go find Muzan and tell him about his success

Muzan send him to retrieve you once he got the wind of it that you would know where the blue spider lily is, that's why you're right now on your knees, getting held down by the neck and all of that in front of Muzan, his red eyes piercing down at you

"Tell me Girl, where is the blue spider lily and I may consider to have some mercy and let you live"