Yokoyama Naoya works as a waiter a small seaside café owned by the flirtatious Miss Miyamori. Alongside his co-workers, the serious Mayuki and the spacey Kuu, Naoya is happy to while away his days with honest labor...
At least, until he learns that The Seaside Café is in the red, and runs the risk of closing.
Wanting to save the café from being shuttered, Naoya turns to his childhood friend, Ichigo, for advice.
After giving the predicament some thought, Ichigo decides that what The Seaside Café is lacking is its own idol group. Bright, shining, sparkling idols should be more than enough to rescue the café from obscurity, and bring about a huge influx in potential customers!
Ichigo enlists Kuu and Mayuki's help, and together they form an idol unit to represent The Seaside Café: Sweet Shoreline.
Things seem to be going well, but there are a few snags with Ichigo's wonderful plan. Firstly, Mayuki and Kuu have no experience singing and dancing - and secondly, there's a rival idol group in town, Honey Devil, who seem determined to undermine all of Sweet Shoreline's efforts.
Will Sweet Shoreline be able to succeed, or will they self-destruct before accomplishing their noble goals? That's for Naoya's actions to determine!