The band "given"—comprised of Ritsuka Uenoyama, Mafuyu Satou, Haruki Nakayama, and Akihiko Kaji—has advanced to the final screening of the Countdown-fes Amateur Contest, in which they will be judged on their live act. Although enthusiastic, they worry about having only one original song to perform. Mafuyu embraces the idea of learning more about music in order to create new, emotionally resonant songs. In this regard, he unexpectedly receives help from Ugetsu Murata, Akihiko's on-again, off-again lover. Ugetsu has unsuccessfully tried to let go of Akihiko, who himself is torn between lingering feelings for his past and an uncertain resolve for the future. As the competition draws near, Haruki uncharacteristically begins to doubt his place in the band and the trust he shares with Akihiko. It is a given that not all attachments last forever, but it remains to be seen what can be salvaged from the ruins of heartbreak—or if only regrets will endure.

Shun Hashimoto is an openly gay aspiring novelist living in Okinawa who was abandoned by his parents after coming out to them. Mio Chibana is a reserved, orphaned high school student, often found spending his time by the sea. One day, the two meet on the beach, and Shun is instantly captivated by Mio. The days fly by as they slowly begin to grow closer until Mio suddenly announces that he has to leave for the mainland. Three years pass before a 20-year-old Mio returns to Okinawa to confess his love to Shun. However, in those three years, Shun's life has changed. Will he be able to accept Mio's feelings and make such a commitment?

Yashiro, the ruthlessly efficient leader of the yakuza group Shinsekai, is also a brazen sexual deviant and masochist. Having been hurt by the only person he had ever fallen in love with, he now engages in strictly physical relationships. One day, Yashiro's superior assigns Chikara Doumeki, a recently released prisoner, to the role of Yashiro's new bodyguard. The stoic and observant Doumeki is also clumsy and impotent, much to Yashiro's dismay. Although Yashiro has a personal policy to not get involved with his subordinates, he finds himself strangely drawn to Doumeki, who keeps denying his advances. Despite his refusals, Doumeki finds Yashiro beautiful and wishes to stay by his side, yet he knows that he will never be able to satisfy his boss. As the two grow closer, their complicated pasts slowly begin to reveal themselves. Will their histories get in the way of their emergent feelings?

As Eishin Kuga—nicknamed "Mad Dog" for his unmistakable bloodlust—beats up his underlings, Yashiro watches and waits for his longtime friend to subdue him. Kanji Kageyama, an underground doctor, at last meets the young hothead whom Yashiro wants to recruit for his yakuza group. However, in light of Kuga's aversion toward Yashiro, Kageyama is ultimately left with the chore of temporarily housing him. But as Kageyama continues to insist that he has no interest in men, Kuga's shirtless presence, riotous attitude, and ceaseless teasing might just change his mind.