College student Tsuyoshi is visited by his strict aunt, Yui, who arrives to check on his well-being. However, a night of heavy drinking leads to an unexpected shift in Yui's demeanor, resulting in a forbidden and passionate encounter. By morning, Yui reverts to her stern persona, leaving Tsuyoshi grappling with his longing for a woman who belongs to another.
Tsuyoshi reunites with Natsuno, a former middle school track teammate who has since transformed into a bold, married woman. While attempting to survive a sweltering summer day with strong canned cocktails, the oppressive heat and alcohol fuel a provocative encounter between the two. After a passionate afternoon, Natsuno departs, hinting that she may return to "cool off" again.
Tsuyoshi and his college friends reunite for a remote drinking party with Miki, a married senior. The gathering turns provocative when they play a racing game with stripping penalties, leaving the men breathless. However, the excitement reaches a peak when Miki forgets to disconnect the call after her husband returns, allowing the group to overhear her intimate encounter.
Tsuyoshi wakes up at Joseph's house to find Joseph's sister, Nastya, staying over after a fight with her husband. In a drunken haze, Nastya mistakes Tsuyoshi for Joseph, leading to a risky and intimate encounter. Despite the danger of being caught by Joseph, the two share a provocative moment that leaves Tsuyoshi flustered and Nastya teasingly calling him a pervert.
After chasing a raccoon into a stranger's home, a young man meets Tamami, a woman with tanuki-like features and an overwhelming appetite. Though he initially fears he has fallen into a supernatural trap, he soon discovers that Tamami's hunger is purely carnal rather than monstrous. However, as he departs, he begins to suspect that his "accidental" encounter may have been a calculated lure.
The protagonist recalls his relationship with Nozomi Kuji, a youthful-looking married woman who frequently visits him to drink and vent about her husband. Driven by insecurity over her small chest and her husband's obsession with VR idols, Nozomi decides to prove the superiority of her petite frame through a passionate encounter.
Tsuyoshi believes he has been transported to a fantasy world where he possesses a "save point" ability and a status menu for his liver. After repeatedly dying to save an elven princess named Symphis, he is rewarded with an intimate encounter. However, the adventure ends abruptly when he wakes up, realizing the entire experience was merely a vivid dream induced by his canned chu-hi.
Tsuyoshi visits Sari Kirihara, a spirited barber who is contemplating closing her shop due to loneliness and her children moving out. After giving Tsuyoshi a haircut, Sari invites him for drinks, leading to a flirtatious encounter that culminates in a passionate night together. Rejuvenated by the experience, Sari decides to keep her business open and encourages Tsuyoshi to return for future trims.
Yui and Tsuyoshi establish a secret agreement to ignore their lapses in judgment when drinking, allowing their illicit relationship to continue. During a subsequent visit, Yui reflects on her marriage and her husband, but she quickly finds herself drawn back into Tsuyoshi's embrace, admitting that he satisfies her in ways her husband cannot.