Stranded on a cursed isle with your devout elf wife and a lecherous sailor, The Sunken Promise is a gripping psychological visual novel where trust shatters, desire warps, and an unforgiving NTR twist tests the limits of loyalty. Navigate survival, moral decay, and the fragility of love in a story where every choice carries weight—and no one escapes unscathed.
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A Marriage Forged in Light, Threatened by Shadow
1. Adventurer and Priestess: A Bond of Two Worlds: You, a weathered explorer, and Myrielle, a serene elf priestess, share a life of contrast—your calloused hands from dungeon delves, her gentle touch mending wounds with divine magic. Married for a decade, your love is rooted in mutual respect: she prays for your safe returns; you protect her from the darker corners of the world. Colleagues joke you’re “too perfect,” but you know better—her quiet devotions and your quiet strength make you whole.
2. Borwin: The Wolf in Sheep’s Clothing: The Sea Serpent’s crew included Borwin, a hulking sailor with a grin too wide and eyes that lingered a beat too long. Onboard, he made lewd jokes, “accidentally” brushing Myrielle’s arm, and once “slipped” a flask of spiced wine into her hand—she politely declined, but you watched, uneasy. He was a necessary evil, you told yourself: a means to an end on the voyage to the sacred temple. Now, he’s your only other company on the isle.
3. The Sacred Voyage: Hope Turned to Ash: The trip began with promise. Myrielle carried a relic said to heal blighted lands; you, maps to a hidden shrine. Passengers whispered of blessings, but Borwin scoffed: “Relics don’t save fools.” Then the storm hit—waves like battering rams, lightning splitting the sky, the ship groaning as if begging to sink. You grabbed Myrielle’s hand, vowing to protect her, but the sea had other plans.
The Isle of Thorns: Survival and Unraveling Trust
1. A Barren Paradise: Washed ashore at dawn, the island is a mockery of beauty: white sands, palm trees heavy with fruit, but no fresh water, no shelter, and cliffs that cut off escape. Myrielle’s hands, usually steady for healing, tremble as she searches for drinkable water. Borwin, unharmed, laughs: “Relax, pretty priestess—I’ll find us food.” His tone makes your skin crawl, but you bite back a retort; arguing won’t fill empty bellies.
2. Scarcity Breeds Tension: Days blur into nights of hunger and thirst. Borwin “gifts” Myrielle a stolen mango, his fingers grazing her wrist. She flinches, but you force a smile: “Gratitude suits you.” That night, she confesses in hushed tones: “He watches me bathe. Says… says I ‘glow’ differently here.” Your chest tightens—you vow to stay awake, to guard her, but exhaustion creeps in.
3. The First Crack: Desperation or Deceit?: On the third day, Borwin “finds” a hidden cave—dry, with a small pool. He insists Myrielle bathe there, “to purify herself for the temple.” You protest, but she hesitates: “What if it’s a sign? What if the gods want us to… to trust?” You watch from the entrance as she slips inside, Borwin’s laughter echoing behind you. When she emerges, her dress clings differently—did he…? You shake your head. Paranoia, you tell yourself. Survival changes people.
The Unforgiving Twist: When Loyalty Fractures
1. Borwin’s Game: Power and Possession: By week two, Borwin’s mask slips. He blocks your access to the cave, “protecting” Myrielle from “wild beasts” (that don’t exist). He leaves her trinkets—a shell necklace, a polished stone—“found” near his sleeping spot. When you confront him, he leers: “She likes me. Admits it, too. Says you’re too stiff for her.” You lunge, but he’s bigger, and Myrielle appears, clutching the necklace: “Please… don’t fight. I just want us to get home.”
2. Myrielle’s Struggle: Faith vs. Fear: Myrielle’s prayers grow frantic. “The gods are silent,” she whispers. “Am I unworthy? Did I anger them?” Borwin seizes on her doubt: “They’re testing you. Seeing if you’ll cling to this mortal or embrace… passion.” One evening, he corners her by the pool, his hands on her waist. You burst in, ready to kill him—but she stops you, tears in her eyes: “Don’t. Please. I can’t lose you… but I can’t lose myself either.”
3. The NTR That Breaks You: The inevitable happens. Borwin manipulates, Myrielle falters—driven by fear, loneliness, a desperate need to feel “chosen.” You walk in on them, the necklace tangled around her neck, Borwin’s hands on her skin. She doesn’t fight. She doesn’t cry. She just looks at you, hollow: “I’m sorry. I didn’t mean… I just wanted to feel something.” The ground crumbles beneath you. This isn’t survival. It’s hell.





