Living together with Erika gives Nagi an opportunity to focus on exam prep, except when they run into trouble.

Erika joins Nagi’s and Hiro’s morning study sessions to wingman for Nagi, and Hiro wants to come hang out at her place.

Sachi notices something going on between Erika and Nagi and decides to try to get to the bottom of it. Both she and Nagi are on the verge of a big decision.

Erika’s parents want her to come home if she fails her make-up exams. She asks Nagi for help, but it may not be that easy.

Sachi is worried about Hiro, so she brings Erika along to follow her and learn about her.

Erika, Hiro, Sachi and Nagi make plans to study at Erika’s vacation house, but there ends up being a slight change in the roster.