Eri’s father works long hours, frequently returning home late with visible exhaustion. Despite his demanding schedule, he dedicates his limited free time to family activities, joining holidays and outings with unwavering commitment. Though occasional quarrels arise with his wife, he remains sweet-natured and accommodating, habitually deferring to her assertive nature in household decisions.

He supports his daughter’s unconventional friendships with extraterrestrial beings, embracing them with affectionate confusion despite lacking insight into their origins or intentions. He tolerates the initially baffling presence of Chinpui, eventually welcoming the alien as a household fixture. His interactions frequently spiral into comedic chaos—malfunctioning gadgets or alien antics trigger absurd mishaps, leaving him in humiliating situations like eggs smashing his face amid elaborate contraption failures.