Ep. 18: Second-year students visit Hokkaido while Tsukasa hides her illness from Riku.

18

Second-year students travel to Hokkaido for a field trip. Tsukasa feels ill but conceals her symptoms to remain with Riku. She eventually faints in his presence, prompting him to rush her to the hospital. Mina attempts to reach Riku via mobile phone but fails because he is occupied with Tsukasa’s care and not checking his device. Riku also ignores Sayuri, believing she and Sakurai are in a relationship. This misunderstanding complicates Riku’s own emotional state during the excursion. The events highlight the strain on communication and relationships among the group while managing Tsukasa’s health crisis away from home.