Blue Flag manga volume 4 features story and art by KAITO.

Toma’s older brother, Seiya, asks Taichi to find out why Toma doesn’t want to go to college. On the day of Toma’s release from the hospital, Taichi still hasn’t found a way to broach the subject with Toma. Meanwhile, Futaba discovers Taichi’s birthday is coming up, and she decides to invite the group to a fireworks festival so they can all celebrate there.