Ep. 4: Samezuka and Iwatobi members prepare for the prefectural tournament with individual displays and lunchbox checks.

With the prefectural tournament approaching, the Samezuka Swim Club members demonstrate their individual skills with great enthusiasm. Meanwhile, at the Iwatobi Swim Club, Gou eagerly suggests conducting a lunchbox inspection. Her goal is to verify that the male members are consuming proper nutrition to support their rigorous training regimen. The narrative highlights the contrasting preparations of the two clubs as they gear up for the upcoming competition, focusing on the specific actions taken by the characters to ensure they are physically ready for the challenges ahead.

▶ Watch on Crunchyroll