Trainee magician, Lan Xi. The childhood sweethearts of Shinozawa, a trainee healer, and Siatt, a trainee spearman. He left the village 2 years ago to become a great magician, and 2 years later he returned to Shinozawa for some reason. A bottle of water that Shinozawa's father bought for 10 gold coins from a merchant's stall a few years ago turned into a bottled girl. Tutu, the demon pet healed by Shinozawa, became Shinozawa's best partner. Aleck, Filia, Stella and others also joined this warm team one after another. Let's work hard for our goals. Let's work together, Mina-san, to find Merc's life experience?~