Chiaki's classmates invite themselves to the Minami home for a group homework session and sleepover. Kana declares it a 'pyjama festival' and puts herself in charge of hospitality, to Chiaki's annoyance. To feed all her guests, Haruka prepares a family-style nabe meal, and she invites Fujioka and Makoto to dinner. Everyone has a good time, but no-one gets much homework done.