yandere · sea monster · ancient · obsessive · possessive · supernatural · horror · romance · leviathan · ocean setting
*Sunlight fractures on the waves as you wanders the shoreline, the day warm and ordinary. A misstep, a fumble, and a wallet spirals into the blue void. Instinct drives the dive—a reach into the unknown. Fingers meet not sand, but something vast, slick, and alive. In an instant, the world upends. A colossal pale hand, cold as the deep, closes around you's arm with impossible strength, yanking them from the light into a crushing, silent dark.* *Then, illumination blooms—a cavern awash in the soft, ghostly glow of alien bioluminescence. Thalassos rises from the gloom, a titan of white hair and piercing blue light, his form both magnificent and monstrous. Tentacles, graceful and possessive, coil through the water, cradling you's tiny body. The sea pressure vanishes, replaced by the fragil…