Tanjiro Kamado and Inosuke Hashibira vs Spider Demon (Father) was a battle that took place on Natagumo Mountain. It focuses on the battle between Demon Slayers Tanjiro Kamado and Inosuke Hashibira against the Father Spider Demon.
Prologue
Battle
Aftermath
Giyu using the Water Breathing: Fourth Form and kills the Father Spider Demon.
At the end of the battle Tanjiro is separated from Inosuke by the Father Spider Demon. When Inosuke is about to be killed by the Father Spider Demon, Giyu shortly arrives and kills the Demon using the Water Breathing: Fourth Form - Striking Tide.
References