Take the wave! Beautiful girls, a new world, a bunch of idiots! For his entrance to university, the young Iori moved into his uncle's house, owner of a dive shop by the sea. Full of enthusiasm for this new adult life that begins, he was not prepared to be forcibly recruited into the totally uninhibited diving club of his college, which chained the drinking without any restraint! In addition to this, Iori is afraid of the water... Can you really learn to love diving when you can't swim?! Grand Blue takes you to discover the wonderful world of diving! With already sixteen volumes on the counter, this atypical manga stands out for its ambiance and crazy humour, carried by a gallery of characters all more endearing than the others!