With the seniors having graduated from highschool, the decided swimmers eagerly tackle their futures with a dream to fulfill.
Now attending Hidaka College in Tokyo, Haruka Nanase unexpectedly runs into Shiina Asahi, an previous teammate and good friend from his center faculty days. Consequently, the troubling reminiscences concerning his middle school swim group resurface, because it was a time when Haruka’s views on swimming grew to become unfavourable and led him to give up the group. Haruka later reconnects with his different middle school classmates; all aside from Ikuya Kirishima, who nonetheless resents Haruka for quitting the group, leading to its disbandment. Conscious of the points between them, Haruka resolves to enhance his friendship with Ikuya. Nevertheless, he shortly realizes that making amends with an previous good friend is not his solely obstacle.
Dealing with the reality and challenges of encountering larger calibre swimmers, Haruka should work exhausting to set up himself if he goals of competing on an international level.