[Machine Translation] Chitose, a college student who has wandered into the other world, spends her days working as an apprentice to the medicine man Zero. The piano Chitose plays produces flowers that emit blue light, and is valued by the royal court. One day, she meets her half-brother, Yuu, who has crossed the torii gate. Yuu cries, "I couldn't say 'I'm sorry' for a long time," and is concerned that Chitose had stopped playing the piano because of him in the past. The two grow closer...