Can miracles come true? Well… it’s complicated.

Mitsuki’s a normal 12-year-old girl who dreams of becoming an idol singer… except she’s dying of cancer. With a surgery looming that could damage her vocal chords, and a grandmother completely against Mitsuki’s dreams of showbiz, it seems like her wish will never come true. But when she’s visited by two shinigami - Takuto and Meruko - Mitsuki makes a promise. If they can help her fulfill her dream, then she will part with her soul willingly when the time comes.