Urusei Yatsura: The Shougaibutsu Suieitaikai

Synopsis

In the blistering summer heat of Tomobiki town, Lum, Ataru, and the rest of their friends are desperate to escape the heat by heading to the school pool. However, the teachers have other plans, setting up a ridiculous obstacle course that forces the students in their swimsuits to face complete chaos before they can reach the cool water.