During a mission for his family, Kemiro Boronéa dies while protecting his team members. However, to his surprise, he reincarnates in the Areantarde dimension, but as a different being.
While adventuring, he discovers that Areantarde is a unique dimension. Where those with audacity can become Sovereign by creating a Divine Kingdom, expand it to become worthy of attracting the attention of the Gods in order to get a Patron God, strengthen the kingdom, and advance through the floors that make up the Areantarde dimension.
Despite his progress, Kemiro is haunted by memories or visions of events he has never experienced.