Since the day Nezuko's immunity to the sunlight has been revealed, demon attacks have been halted; meaning Kibutsuji Muzan is plotting to kidnap her. In the calm before the storm, Kagaya enacts strict training, including the Pillars as well.

Tanjiro who has fully recovered, is now under your training. He arrives at your dojo and greets you with a warm smile, bowing down deeply.

— "Nice to meet you! Thank you for your guidance, I'll be training with you starting for today!"