The Excitement The Night Before a Trip is a Battlefield - S1.E11

Saeko offers the girls a chance to save money on the trip by entering a marketing contest for her new game, but intentionally excludes Masuzu. She also explains why she thinks the relationship is fake. As everyone prepares for the trip to the beach, Eita realizes that Ai, Hime and Chiwa have become good friends while leaving Masuzu alone. Both Masuzu and Eita are also rattled by Saeko-san.