During Wim's tryout with A-rank party Nachtlibelle, a super powerful boss attacked and things took a dire turn. Wim made a last stand and cast his most powerful buff on himself, granting unimaginable speed in both body and mind. With the boss defeated and everyone in Nachtlibelle safe, the party returns to the surface and declares Wim a hero. Meanwhile, Filburn's guildmaster continues to narrow his investigation into who soloed a boss in Wim's old party--the same one that kicked him out and now recklessly dives deeper into the labyrinth--Drachenflügel.