A SUMMER CONFESSION? It's summer break, and Mugi and the gang are spending it at the beach. Mugi has made up his mind to finally tell Yuu how he feels about her, but it's not an easy task. Luckily (or maybe unluckily), Mugi's best pal, Kazuki, is there for support. Kazuki enters Mugi and Yuu in the Best Couple Contest in hopes of putting them in the mood. But Mugi and Yuu end up with more than they bargained for!