Yuri Akatsuki, father to Chika Akatsuki, possesses light blonde hair and green eyes. His eccentric, flamboyant, and energetic personality starkly contrasts his son's serious demeanor. Yuri frequently employs exaggerated speech patterns infused with Anglicisms and fluctuating vocal tones, enhancing his unconventional and often comical presence. He demonstrates intense physical affection toward Chika, primarily through prolonged hugging sessions that visibly discomfort his son, significantly contributing to Chika's choice to live outside the family home.

Underlying this behavior is Yuri's genuine desire to provide paternal love and emotional security for Chika, aiming to enrich his son's life and fulfill the role of a devoted father, though his unconventional methods cause relational strain. The family includes Chika's younger sister, Momoka, who displays consistent apathy toward her surroundings, typically engrossed in mobile phone usage.

Historically, Yuri was abroad with Momoka during Chika's childhood when their mother abandoned the family, leaving Chika neglected and emotionally scarred. Aware of Chika's post-accident transformation into a zombie, Yuri experiences heightened paternal anxiety, particularly regarding Chika's fear of hand decomposition and potential familial rejection. Yuri's overt affection may represent an attempt to compensate for these past traumas and present circumstances, though his approach remains at odds with Chika's need for autonomy.