This online ladder draw game (known as Ghost Leg in China, Amidakuji in Japan, and Sadari-tagi in Korea) provides a fair, entertaining way to handle everyday random decisions in schools, workplaces, and social gatherings—who buys coffee, who cleans up, who presents first, which song comes next at karaoke. Enter participants and outcomes (winners, losers, penalties, prizes) and the algorithm generates randomized horizontal rungs based on permutation theory, guaranteeing that every player has a mathematically identical probability of reaching each outcome. The curtain mode hides ladder paths until each participant clicks to reveal their route one by one, faithfully recreating the suspense of paper-and-pen sadari-tagi. Completed matching results format instantly for one-click sharing to KakaoTalk, Slack, Discord, or Microsoft Teams. Because ladder draws implement a bijective (one-to-one) permutation function, position and turn order have zero effect on fairness—complete equity is mathematically proven. Use it for dinner-tab lotteries, welcome-party penalties, dormitory chores, pet-walking rotations, or any real-world random selection.