

Nao learns that Uehara is on first name terms with Saeko in his lab. She confides her fears to Natsume during a trip to a petting zoo with his sister.
Nao and Uehara head off to college, but Uehara's popularity worries Nao, and their new acquaintance Natsume seems to want to separate them.
A kiss incident with Natsume causes misunderstandings between Uehara and Nao. He takes a job in a lab while she scopes out clubs at college.