After a mid-match wardrobe malfunction leaves him exposed to the public, Lee Chae-yoon swears off water polo for good.. Now he's making a living (sort of) as a fashion model, albeit one with an attitude problem. But, after a chance run-in with Ham Suho, the pants-puller from his past, Chae-yoon soon finds himself thrown back into the deep end of competitive water polo, and now there's more than just his own reputation on the line. With past emotions refusing to stay submerged, it's up to Chae-yoon to decide whether he sinks or swims+