It is up to the unlikable PE teacher Tomioka Giyuu to rally and lead his fellow faculty members to keep the students safe from the ravenous, flesh biting infected. Takes place in Kimetsu Gakuen verse that was slightly altered.

After temporarily losing his sword, Giyuu unintentionally broke all his limiters, being too strong for anyone to handle. Will he finally gain the confidence to believe in himself? KnY focused.