Haruko is a guy from Japan who likes to sing, paint and help people. Proffecionally, he is a famous painter in Japan. He and his sister Haruna were born in 19 July, but nobody knows the year they were born, because in their birthday, their mother was very sick, and the only way to make her better was a spell from the wizard of the city. That spell would permit the babies grow up to 19 years old. And then, they'd live forever with a youthful appearance. Since that moment singing with Mainichi, Haruko fell madly in love with Mainichi. But he was too shy to tell him.