Dr. Makino gets off to a rocky start at his new job; he introduces himself by bluntly telling students not to visit him at the nurse's office.

The sixth graders learn how to use defibrillators; the unsettling rumor about Makino makes Riko hesitant to tell him about her stomach pain.

Makino learns that Kei spread the rumor about him and why; when Kei's brother Naoaki goes missing, she asks Makino to help her find him.

During a three-day field trip, one of the sixth-grade girls worries that a boy will reveal that she destroyed their class's holiday display.

Makino reflects on an incident from his time working at a university hospital when a single father brought his feverish son in for treatment.

Constantly busy with her duties, Shinoya shows signs of exhaustion; later, she receives a surprising phone call about a shy girl in her class.