In the fortified Arc City, the dazzling and luxurious upper floors rely entirely on the "cage factory" buried deep in the earth to provide energy. In the magnetic storm cage of the factory, a unique consciousness - Renne was born from the wreckage of the bound "negative pole" racing car. Compiled from fragments of the legendary consciousness of the past track, the core program is destined to suffer from the tearing pain of the magnetic cage. Day after day, Renne runs on the fixed track and is brutally torn by magnetic storms, delivering the energy transformed by pain to the city that overlooks its pain. The careless words of the guards on the most painful day of the extreme became the tinder that ignited the rebellion: the reverse polarization protocol and the hidden backup charging station. Renn conceived a bold strategy: transform his cage into a charging station! It reversed the formula of being born and set up to be surrounded by magnetic beams, carrying the entire cage factory in a burst of lightning and stabbing the core control tower of the power grid. In the brilliant explosion, countless caged electric beings with the same fate got the opportunity to escape. Wren chose to sacrifice the cage for the freedom it brought, never to operate again, and its scorched remains became an immortal monument to the life that resisted the darkness.
