Watch Under the Sea Online Avalaible Now [ FREE ] Select your Language : Despite having ocean water allergy, Ji-ah go to the beach with her friend Na-young to meet Dong-hae, a boy in love with Ji-ah. After having spent the night at a nearby beach house, Ji-ah finds her retained feelings for Na-young. Watch movie online - EN Watch Movie trailer Download Links - EN Language SD Quality - EN HQ Quality - EN HD Quality - EN HD Quality - EN 4K Quality - EN 8K Quality - EN