Ashibe's Dad works as a carpenter, known for impulsively modifying his apartment without permission, resulting in warnings from his landlord. He is the son of the president of Ashibe Commerce, placing him within a business-oriented family despite choosing a working-class trade. This choice sometimes draws dismissive attitudes from his wealthy father's employees, who view carpentry as less prestigious.

His appearance features trimmed black hair usually tied back with a thin white hachimaki headband, thick eyebrows, very small black dot-like eyes, and mustache stubble. He typically wears a practical white short-sleeved shirt.

Energetic and playful, he shares an almost brotherly dynamic with his son Ashibe, contrasting with his wife's more mature approach. He frequently engages in zany antics, like disguising the family pet seal Goma-chan as a pillow, daikon radish, or the neighbor's child, or unexpectedly appearing in Ashibe's classroom. Despite this impulsiveness, he shows sensibility and protectiveness, advising Ashibe on empathy—such as questioning whether they should feel bad about eating a seal instead of simply forbidding it.

His relationship with Goma-chan changed significantly after he initially mistook the seal for a large fish and planned to eat it. Upon identifying Goma-chan as a baby seal, he decided to keep him as a pet. He actively participates in Goma-chan's care, accommodating the seal's wish to attend school with Ashibe. As a family figure, he balances lightheartedness with reliability, working to provide for the household while maintaining a loving presence.