When Han Jisung surprises Lee Minho with an intimate birthday trip to the aquarium, they're swept into a world of quiet wonder-and something far more electric. Amid glowing tanks and deep blue waters, unspoken feelings rise to the surface, sparking a tension neither can resist nor fully understand. Each stolen glance and lingering touch pushes the boundary between friendship and something deeper, leaving them both breathless and conflicted. Will they dare to face the irresistible pull between them?
16 parts