While preparing for a class play, centaur Himeno Kimihara, who is playing the princess, ends up kissing her demon friend Nozomi Gokuraku after a male classmate who had originally hoped to play the prince role modified her script. During the play, a set of steps collapses beneath Himeno and Nozomi, forcing Himeno to make a daring rescue to save Nozomi. Later, during marathon practise, Nozomi and their half-Satyr friend Kyouko Naraku test how fast Himeno can run, which almost results in an accident.