Elite competitive swimmer Kang I-ha lives under a terrifying celestial countdown, destined to drown when he reaches his twenty-second birthday. Meanwhile, Shin Ji-an wanders the human world as a fallen Water God, stripped of divine senses, unable to taste food or feel warmth. Their doomed paths collide at poolside, where accidental skin contact abruptly restores the deity's lost magic and reignites his frozen senses with intoxicating intensity.
Realizing that physical closeness is the only conduit to divine restoration, Ji-an becomes I-ha's shadow, offering celestial protection in exchange for touch. As the fatal birthday approaches, their mutual dependence deepens into fierce devotion, forcing both men to defy cosmic laws to shatter the curse before the tide claims I-ha's life.
