A startled Ume struggles to respond to Shiraki’s unconventional proposal. Hayashi finally decides to be with Kozue, but he makes a shocking discovery.

Momoe feels awkward around Matsuda at the office. Meanwhile, Ume takes a nasty fall while hiking in the mountains and desperately calls for help.

Touched by Hayashi's unexpected kindness, Kozue asks him to be her boyfriend. Hiyama finally goes on his long-awaited hot spring date with Kokoro.

Already working two jobs to keep seeing Kokoro, Hiyama needs more money for an overnight trip with her. Hayashi provides help to a neighbor in need.

Matsuda agrees to become Ako’s live-in boyfriend during his week off work. But when the week comes to an end, so too will their relationship.

With five romantic partners, Momoe is still as addicted to love as ever. But with her age creeping closer to 30, she also has marriage on her mind.

Hayashi considers meeting Nagi despite what he learned, leading him out of his comfort zone. Momoe outlines the various types of guys she sleeps with.

Locked in the stockroom together, Momoe and Matsuda struggle to resist their urges. Unconcerned by Kokoro's games, Hiyama allows himself to be played.

Studio Delta team leader Hiyama falls for an escort, which proves expensive. Momoe starts thinking about hobbies and Hayashi sets up a dating app.

Momoe and Matsuda awkwardly bumble around his apartment until they end up sharing a bed. Hiyama tries to talk with Kokoro but she changes the subject.

Due to emotional trauma from his cheating ex, Hayashi declares that he can only be with a virgin. Matsuda applies his expertise at manipulating women.

Momoe reflects after a disappointing night with her favorite guy. Valentine's Day gets everybody stirred up about giving and receiving chocolate.