A tragedy-struck boy from Earth was transferred to Antaluna, a mana assimilated world with Role Playing Game-like elements. With the help of his unique ability to copy and instantly learn any move he sees, his goal now is to become a god. Eventually reaching the peak of humanity and gaining the title [The Walking Calamity], godhood was within his reach. That is, until he died trying. However, death is but a part of his journey. Will history repeat itself or will the man called as [The Walking Calamity] change fate?