Dekirukana

A group of children stumbles upon a Geiger counter kit in the bustling district of Akihabara. Intrigued by the device and its potential, they decide to investigate its origins, driven by a fearless spirit of "let's do anything, let's go anywhere." Their curiosity sets them on an unexpected path, leading them to uncover a hidden world of science and danger.

Their journey takes a serious turn when they become entangled in a Natrium leak incident at the Monju nuclear power plant. As they dig deeper, they face the real threat of radiation exposure and must navigate the complexities of the accident. The children's determination is tested as they strive to understand the situation and find a way to help, all while keeping their adventurous spirit alive.