After jointly founding the so-called Space Club, Youichi and his friend Amamiya Ginga, the son of Amamiya Daigo, spent their school days building a rocket -- until one fateful night, a mysterious young girl called Aries crash-lands near them, her memories also lost from the shock of the landing.
One day while practicing archery, Tomoe shoots an angel out of the sky. While he doesn't believe in love, the angel Aine literally sings its praises. Like it or not, Tomoe will have to help Aine play cupid to bring together all of the distressed couples they encounter.