Alya Sometimes Hides Her Feelings in Russian, Vol. 4 (novel)

Summer vacation has arrived, so Masachika and Alya have some time to get closer and now she calls him by his first name! Plus, the student council goes on a trip: a private beach and summer festival fireworks set the mood. Swimsuits baring skin, dips in the hot spring, and a game of King really heat things up! What's going to happen in this place where all sorts of romantic situations are possible!?