At Korea University's extreme sports free-diving club, only the members know that the club's name, which supposedly expresses their ambition to explore deeper waters, is actually a pun on '<Dick> deep.' Free-diving is just a facade; what they are really swimming in is the ocean of 'sexuality'! Into this strange land of Dick Deep, where people with all sorts of sexual preferences gather, falls an 'Alice' who doesn't belong—former national swimming team athlete, 'Junsu.' Club president 'Sona,' smitten with the mouth-watering, handsome Junsu, begins to weave her schemes to make him stay... A campus sex-life story of bold youth, Dick Deep!