In a steampunk world where steam-powered vehicles called Trotmobiles define daily life, players take on the role of Vanilla Beans, a young man who awakens on a beach with no memory of his past. Gradually drawn into a series of escalating events—exploration, Trotmobile combat, and meaningful social choices—his story unfolds differently depending on the decisions made. Multiple endings reflect the cumulative weight of the player's actions throughout the journey.