Hidden Under the Kotatsu with Sister

A stealth-based adult mini-game with a simple premise: during a family gathering, the protagonist becomes aroused and initiates sexual activity with his younger sister while their parents are distracted by television. The core gameplay involves clicking at the right moments to progress while avoiding detection—timing clicks during moments when parents are engrossed in TV, and stopping when they look back to avoid raising suspicion. The game features three animated sex acts performed with basic dot-animation graphics and aims for roughly 10 minutes of play.