Shizuku Ishiai, a second year middle school student, loves dancing, but is bad at expressing herself, so she crossdresses and posts videos of her dances on the popular website "Smile Douga", under the alias "Ai". And she had declared the "dancing prince", Hayate, her rival. But, after a few unexpected events, and her attempts to best him, she's somehow thrown into an idol unit with him; furthermore, a MALE one?!
Main story: Chapters 1–44.
Sidestories/bonus (related to the main stories): two in volume 2, one in volume 3, one in volume 4, three in volume 5 (one of them with less pages in a sketchy style), two in volume 7, one in volume 8, two in volume 9, two in volume 10 (one of them with less pages, refers directly to the other side story in volume 10), one in volume 11 and one in volume 12.
In total: 44 chapters of the main story + 16 bonus -> 60 in total.