Facing three great demons is a lot to ask of for an untrained Demon Slayer, but as demons crucial to the land are being devoured, it's time for Yuuto to step up. But can he face them without being able to use his power?

The girls attempt to train Yuuto for the inevitable battle. As they practice, their enemies are set to make the first move. Are Yuuto and the girls ready for their biggest challenge yet?

The battle heats up for the epic conclusion. Himari gives in to her true demon nature to face Tama, but is she beyond saving? Or will Yuuto finally wield the power within him?