Auden and his roommate Cassian have lived together for three years. Cassian has secretly loved Auden the whole time but never confessed. A campus “heartthrob test” joke makes Auden start noticing Cassian’s gaze. Cassian cares for Auden through pineapples, strawberries, and small habits, and tricks him into a first kiss under the excuse of “tasting.” Auden insists it’s “just an experiment” while falling deeper. When Cassian suddenly leaves for a two-month exchange program, Auden realizes he misses him, gets jealous of girls around him, and eats pineapple until it tastes bitter. After Cassian returns, Auden confesses first. Just as they get together, Cassian receives an overseas research fellowship and Auden an national theater tour. Instead of sacrificing their futures for love, they agree to daily contact, no unilateral decisions, no disappearing. A year later, Cassian returns on time, and they take jobs in the same city.
