Nasa and Tsukasa are back home just in time to find out that they'll be moving into a new apartment soon, and Tokiko has something important to tell Nasa.
Nasa is forced to consider how verbally intimate he is with Tsukasa, before Kaname encourages the two of them to get physically intimate in the bathhouse after-hours.
Nasa's knowledge is a big help to the people around him, but even he's not sure about the list Kaname finds on the internet that describes the symbolism behind different kisses.
Tsukasa and Nasa head to a big-name theme park, where they have a run-in with Nasa's old teacher, who might be in the middle of her own romantic encounter.