Sensual Stamina Training

Set between chapters 127-128. After defeating two members of the Twelve Kizuki, Tanjiro and Mitsuri are recuperating from the recent battle, which Shinobu paid a surprise visit, but accidentally found that Aoi had a hidden sake in the room. A brief scuffle causes Shinobu to accidentally drank and got drunk, and tricked Tanjiro and Mitsuri to do a SENSUAL TRAINING program.