Does a marriage need a wedding? The Yuzakis grapple with that question, as Nasa learns just how daunting the ceremony can actually be.

Old friends resurface in Nasa's life, as he introduces Tsukasa to his old teacher Yanagi Naoko.

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.

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.

Thanks to Kaname, the Yuzakis find themselves on a honeymoon trip to Kusatsu, home to some of Japan's most famous hot springs.

Scorching summer heat motivates the Yuzakis to purchase a new air conditioner, which ends up resulting in some new encounters.

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.

After Tsukasa grapples with her technological anxieties, the Yuzakis are greeted by two different visitors.

The Yuzakis are joined by friends and family for their camping trip, but can Nasa overcome his inexperience in dealing with the outdoors?

As the sun sets on the group camping trip, Tokiko and Kaname have a special surprise in store for the Yuzakis.

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.