High elf adventurer Cayna was exploring a dungeon and reached the lowest floor where
she was reunited with Opus, an old friend from her gaming days. Their reunion was
short-lived, however, since Cayna immediately lost consciousness after suddenly
exhausting her magical power. Opus takes Cayna and her companions Clofia and Cloffe
to his hideaway to rest and recover while he prepares for an imminent event, but what
exactly is he so busily preparing for...?