Ballet Hero Fantasy: Dan's Adventure Feat. Steven McRae

Dan's dream is to be a dancer. He has plenty of heart, but his ability doesn't quite live up to his passion. Despite this, he looks up to his upperclassman Steven McRae, who is worlds beyond him...literally. Using a magic mirror, Steven travels to a fantastical world, where he acts as a Ballet Hero! When Dan accidentally ends up following him, Steven quickly realizes that Dan being here is no coincidence. Source: Manga Mavericks Books