One day, a man suddenly fell from the sky onto the veranda! Yes?! The youngest son of the Jade Emperor who fell from heaven?! I didn't want to believe it, but for some reason, the figure of Shurim is only visible to Sky, and he even speaks and dresses in ways that modem people don't use. Sky, who had no choice but to live with Surim! What will happen to Sky, an ordinary high schoolgirl?