Furuchi and Hama are two inept repair agents and electronic engineers. One fateful day, Furichi stumbles upon a mysterious Kotatsu heater. Tragedy strikes when Furichi is fatally injured in a traffic accident. However, with the unconventional help of a stun gun, Hama miraculously revives Furichi. Strangely, the Kotatsu heater also springs to life, sparking a series of unexpected events for the trio.