Contains spoilers for this episode and earlier episodes.
Su-ho prepares to confess to Ju-kyung during their school trip, but their classmates keep pairing him with Su-jin. Ju-kyung sits beside Seo-jun on the bus and joins his team for the games, watching Su-ho from a distance while trying to conceal her disappointment. A local ghost story gives the students another distraction. When Su-ho finally gets time alone with her on a rowing boat, he asks to take a photograph despite usually avoiding cameras. A fly interrupts the moment, and Ju-kyung falls into the lake. With her makeup washed away, she must hide from the classmates searching for the supposed ghost.
Seo-jun cares for Ju-kyung when she feels ill and gives her a bracelet, provoking another fight with Su-ho. Tae-hoon keeps trying to arrange a private confession, but Ju-kyung misunderstands his advice and believes Su-ho intends to choose Su-jin. At the evening gathering, Seo-jun sings because Ju-kyung wants to hear him, yet her attention stays on Su-ho. She leaves in tears and tells Seo-jun whom she likes, asking him to keep it secret. Su-ho follows and explains that she has misunderstood his relationship with Su-jin. Another interruption sends them running from the ghost hunters before they finally find a quiet moment. He tells Ju-kyung that she is the person he likes and kisses her.