Starlos is a old friend of Ceroba and he runs the Fistey Five
Ceroba was married to Chujin and had a daughter named Kanako
Chujin experimented so much on himself to break monsters out of the Underground but he worked himself to death and created tapes for Ceroba to watch, what was required to save Monster kind... he would later die in bed as Ceroba held his hand 
Kanako was killed by her mom when she ejected a serum but instead of saving Kanako it snapped her soul dying in Ceroba's arms