After making it through the Subterranean Lake with the gang, Yuto and his monsters prepare for the next event: a raid boss battle to celebrate the unlocking of Zone Five! But before the event, Yuto stumbles upon a rare ingredient. As the rumors of his coveted culinary discovery spread, Yuto finds more and more players flocking to him in the hopes of gleaning information about it-even in the middle of the raid boss event! The event brings out new and familiar faces alike. Can everyone manage to work together to take down the boss?