Aspiring ballerina, Midori Gosho, has an half-english older stepbrother named Kaoru who lives in London. After a failed performance at a national Ballet competition, Kaoru invites Midori and her ballet friends to participate in the summer camp held every year at the prestigious ballet school he works at as a music teacher.

At the camp in faraway London, Midori is not just roped into the preexisting dynamics among the regular students at the school when she's chosen for a role in an upcoming performance, but as she overcomes the challenges thrown at her, a complex web of love and familial relations comes to light, in which her own family plays a significant part.