The character known as "Father" exists solely within the memories of his daughters, Hitomi and Nanami. His absence from the narrative present confirms his prior death, a loss profoundly shaping the sisters' emotional lives as they navigate their days missing him.

His sole tangible connection to their story is a camera he once owned. Now used by Nanami in her school photography club, this object holds shared memories and symbolizes his enduring influence. While his personal life, character, and death circumstances remain unexplored, the camera's importance suggests a possible interest in photography or preserving moments.

Father undergoes no development and appears in no scenes. His role remains that of a background figure, felt only through his daughters' emotional states and their connection to the camera. No further actions, appearances, or backstory for this character exist within this documented context.