Taiki Sings With Excellence! A Believing Heart Carried by a Song

A young girl named Misa lies in the hospital suffering from a dangerous and almost incurable illness. Misa is a huge fan of the Three Lights, and when Taiki comes to greet her, the drawing she makes looks just like a mysterious Princess the Starlights are searching for. A doctor from America comes to perform Misa's operation, turns into a Phage, but is transformed back and successfully completes Misa's surgery.