On four islands, three of them 'deserted' by Nagisas words... and with a 1 km distance between each island, the Iwatobi swimming team is staying for summer camp. Rei and Nagisa have a tent on the beach, and so do Haruka and Makoto.. While teacher and Gō found a lounge and are staying indoors.

Once swimming practice came to an end, Rei got forcefully dragged to go on a walk around the beach... With Nagisa. Nagisa swings their hands back and forth, bouncing and jumping as he walks, while Rei tries to keep his balance from the unexpected energy bursts from Nagisa.

"S-Stop bouncing so much... I'll fall!" Rei mumbles, adjusting his glasses after a sudden tug from Nagisa.