Asugi is the son of Saizo, the nephew of Kaze, and the cousin of Midori. Like the other children of Fates, Asugi was placed in the Deeprealms to protect him from the war. As the son of Saizo, Asugi was given training in hopes of having him succeed as the sixth in a line of Saizos, given that he is his first born son. However, the pressure of becoming the next Saizo proved too much for him and he decided to discard that name, instead naming himself Asugi. According to him, that name means "gray". Sometime later, Asugi was hired by a bandit gang led by Funke who wanted to raid a nearby mansion. Although paid by candy, Asugi had doubts of the mission and wanted out. In his Paralogue, Saizo decides to pay him a visit in hopes of testing his son to see if he is worthy of becoming the next Saizo. Suddenly, Saizo sees people up ahead and finds Funke and to his surprise, Asugi. Saizo is disappointed that Asugi joined them, stating that he brings shame to the Saizo name he will one day inherit. Asugi expresses that he has no interest in the name, given that Saizo never spent time with him. Asugi promptly leaves to the mansion. Inside, Saizo and the army finish off Funke and his gang, allowing Saizo to eventually catch his son. Asugi finally tells his father that he wanted no part of the mission as not only did Funke wanted to rob the mansion, but kill its owner. Asugi tells Saizo that no amount of payment could make him do such a thing. Asugi asks Saizo what he plans on doing with him. Saizo tells him that he is free to go, but he is no longer forced to be the sixth Saizo in name. Saizo tells him that the name was meant to live up to the honor and that Asugi seems to have found his own honor and tells him to enjoy his life. Asugi thinks for a bit and decides to join the army, seeing the opportunity to learn more and perhaps fix his father's "sourpuss face". Regardless if married or not, Asugi eventually decides to carry on his father's legacy, and the Saizo name passes down at least 100 times.