During his first encounter with Ginshu, Bonten tried to kill the human, but found out that it was futile (as Ginshu revealed he was just a decoy for Shinshu). He was very fond of Ginshu, but unlike Ginshu, he did not like to openly admit it and often spoke to him rudely. He spent most of the winter as a child playing with Ginshu in various games. However, their relationship changed drastically after the priestess of the Sakigami shrine severely injured Tsuyukusa. A bloody battle took place, and as Ginshu and Byakuroku killed each other, a deal was made with Heaven, so that Shinshu's power was transferred to Bonten, and he replaced Byakuroku taking his place as Heaven's Seat.
In a later chapter, Bonten loses his power to read Heaven's net.