Dantetsu Kiryu (桐生 ダンテツ Kiryū Dantetsu) is Daigo's father who gives him an amber pendant that was later revealed to be the Secret Stone of Allomerus, and sets him on his own path. Later he is pleased to learn that Daigo has chosen his own path which aligns with his own. He later becomes Kyoryu Silver while seemingly betraying his son and fellow Kyoryugers, joining the Deboth Army to preserve the Earth by allowing the extinction of only human life on it as part of his hidden plan to obtain the Earth's Melody.