Bokura ga ita

Nanami Takahashi begins her second day at her new high school, making two new friends in her class, like the shy Yuri.

On a class trip, Yuri gets sick while Nanami and Yano have a conversation about his past.

It is summer vacation and Nanami goes to school for the play rehearsals, but she's pretty annoyed that Motoharu doesn't turn up to any of them.

The Cultural Festival draws near and all the students are hard at work preparing for the event.

Following Motoharu's confession during the Cultural Festival, Nanami seems pretty out of it as she couldn't sleep at all last night.

Nanami is thinking about the things she's enjoyed with Motoharu but "crossing the line" is the one thing she still cannot do.

Motoharu asks Nanami out on a date but she blows him of to secretly buy him a present, but it isn't much of a secret because he follows her.

In her room, Nanami uses this opportunity to ask Motoharu about his past Yuri and it takes some time for him to give her answer.

All alone with Motoharu at his house, Nanami actually suggest that they finally "do it."

Without thinking Nanami steals an old picture of Motoharu together with Nana, from Yuri's knocked over bag and she's doesn't know what to do about it.

Nanami and Motoharu's study session in interrupted when, out of the blue, Yuri turns up on Motoharu's doorstep, with something to tell him about her sister.

In an unconventional way, Motoharu finally confesses to Nanami, the sin he committed to Yuri.