In The Land of Leadale Light Novel SC Vol 06 (C: 0-1-2)
Relisted
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 due to the sudden exhaustion of 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...?