Gandara Music`s new A&R Sumisora Tsubasa is assigned to work with the three-group and ten-man idol unit "B-PROJECT." Meeting the boys for the first time while they`re rehearsing for a music program, she`s immediately toyed with and tossed about by the quirky members of B-PROJECT. Next she accompanies Kitakore, one the groups, to the recording session of their new song. Tsubasa is enchanted by the voices of Kitakado and Korekuni, but during the song, she notices something is off.

MooNs has arrived at a campsite in the mountains to shoot a commercial for "Star Curry." Because this is the first time one of their songs will be used in a commercial, the members are exited and getting along well. The director Ninomiya expects much from the boys, but the rest of his staff are skeptical. When Tsubasa hears them talking about MooNs, she hopes the job will teach them just how great MooNs is. However, while the shoot starts off well, a problem suddenly occurs.