After spending their first year of high school in peace and quiet, Haruka and Makoto run into Nagisa, a new student who was a member at a swimming club with them when they were kids.  That swimming club is being torn down, so the three of them sneak in to dig up a time capsule that they buried in the back, which is when they are reunited with Rin, the fourth member of their group who left to study abroad.
who became a teacher as plan B?
die als Plan B Lehrerin wurde?
profesora al no alcanzar sus 
sueños se ponga a enseñar?
con una persona que considera 
la enseñanza como su plan b?
ha deciso di diventare insegnante 
 solo dopo che il suo sogno si è frantumato?
que só virou professora porque 
as coisas deram errado?
кто пошёл в профессию из-за безысходности? 