Tsuma no Mamorigami

A first-person 3D voyeurism game built around a netorare (cuckolding) fantasy. The player assumes the perspective of a husband who secretly watches and moves freely around a room as his wife is seduced and engaged in sexual acts with another man. The game emphasizes immersive spatial presence—using 3D audio positioning and free camera movement so the player can peek through door gaps, windows, and other vantage points. The experience is designed to heighten the forbidden thrill of witnessing an intimate moment from a hidden vantage point, with both characters fully voiced and the scenario depicting the complete progression of the encounter.