Fukuyama turns the school pool into a resort as means to get the girls all to himself. Things get out of hand when Fukuyama and Yukinari switch bodies with the help of Lisa's magic, and really out of hang when everyone switches bodies.
One of the students (Mamoru Machida) at the school wants to be a super hero to clean up trash at the school, with Lilica's help, he just might succeed.
Tomoka and Fukuyama spy on Kirie as she runs into various men with amorous thoughts toward her. Tomoka ends up running away leaving the gang worried until Fukuyama comes to the rescue.
The gang heads to a video game convention to make some extra money, but things go amiss when another girl doesn't show up for her job and Yukinari has to dress up as girl to help out, and "she" draws the attention of Fukuyama.
Tomoka is bored so the gang ends up playing a different version of Mahjong with Fukuyama, the problem is the game involves skimpy outfits and rubbing of your opponents.
A frustrated Maharu comes to earth to get an update on the search for her husband, needless to say the gang is surprised by her arrival. Her presence causes some disruptions, but she doesn't stay long.
Koyomi thinks she see her Dad on TV as the gang discuss the marks on Miharu's head, so the she goes off looking for him. The gang follows along and helps out after seeing Koyomi fail on her own, but trouble finds him before they do.
While Miharu is out shopping for her friends Yukinari loses his allergic reaction to girls. Once Miharu gets home she no longer feels special to Yukinari and decides to head back to Seiren with Hijiri.