
On the way to meet his birth parents, super-student Nagi meets brash Erika, who needs a quick favor; she wants him to pose as her boyfriend at dinner so she can avoid an arranged marriage.

Hiro and Nagi begin studying together in the mornings, but unexpected circumstances put a wrench in their relationship.

Erika is Nagi's wingman during Nagi and Hiro's morning study session.

Nagi invites Hiro to join his group for a school field trip; the group is plunged into chaos with the addition of a couple more members.

Sachi notices something going on between Erika and Nagi and decides to try to get to the bottom of it.