A Broken Heart Tastes Like Natsumikan?.The boxing club depart for their training camp. As they enter a tunnel, an earthquake traps the train. With the lights out, Hibari prompts Rie to tell Shiina she loves him while Shiina plans to kiss Hibari. Shiina and Rie switch seats, so Shiina sits next to Hibari while Rie ends up next to Kösaku. Shiina tries to kiss Hibari but gets beaten up, while Rie mistakenly confesses her love to Kösaku. Seiji arrives, admitting that Ibari told him to make sure Hibari and Kösaku do not do anything while alone together. Seiji drives the club to the camp at Umineko Inn, with the boys in one room while Hibari and Rie share another...