Tensions rise between Yanbo and Milk following a sauna incident, while the men face off in one-on-one fights with dates on the line. Meanwhile, the women head to a Kabukicho host club under the guise of a “field trip,” only for unexpected drama to unfold.

An unprecedented incident leads to a sudden farewell, leaving Tekarin devastated. As the heavy atmosphere lingers, a transfer student joins the group. Meanwhile, signs of romance begin to emerge for Tsu-chan, who had remained on the sidelines until now.

The group heads out to a club in Roppongi, where they come face to face with another transfer student. However, a certain action by the newcomer provokes Baby’s fury, triggering a major incident. Will the transfer student be able to join the school without further trouble?

During a shared sauna session, Otosan openly shows his emotions toward his partner. As the experiment reaches its midpoint, the men write heartfelt letters to the women. Who will receive the most declarations of affection?

While preparing for an event at a children’s cafeteria, Tekarin begins to develop unexpected feelings as she struggles to move on from someone who left. Meanwhile, tensions escalate as the women vie for the same man. That night, during a fireworks gathering, the situation finally erupts into a dramatic confrontation.

With graduation just four days away, the members gather for a party aboard a traditional houseboat. They open up to those they care about—and even to those they have lingering tensions with—laying their feelings bare. As emotions run high, Tsu-chan’s romance finally begins to take shape.

In an effort to close the distance with the women they are interested in, the men make bold, direct appeals over the school’s public address system. Two women who receive multiple calls are forced to make difficult choices. Meanwhile, AMO takes a daring step in the living room.

Thanks to their strong teamwork, the children’s cafeteria event is a success, leaving the group with valuable lessons and a sense of gratitude. On the final night of their shared life, Milk and the others wrestle with complicated emotions. Then, Otosan makes another shocking move, sending shockwaves through the group.

Some are resolute, while others remain torn. As emotions collide, the long-awaited final day arrives and the “Confession Ceremony” takes place. Gathered in attire worthy of the finale, will the members succeed in claiming true love?