The Secret Breathing Technique
Tanjiro attempted to try a new breathing technique on Zenitsu to calm him down.

Inspired by this wonderful work by this artist:

‘R-18’, ‘鬼滅の刃’, ‘尻神様’, ‘ひょっとこフェラ’, ‘我妻善逸’, ‘腐滅の刃’, ‘竈門炭治郎’, ‘炭善’, ‘抜け陰毛’