Entaro Hojo, father of Shusaku Hojo and father-in-law of Suzu Hojo, serves as an aircraft engine engineer at the Hiro Naval Arsenal in Kure during World War II, his profession anchoring him to Japan’s wartime machinery and the era’s societal strains. Renowned for his unflappable composure, he navigates escalating wartime adversities with measured seriousness, seldom yielding to anger. When an air raid strikes the naval arsenal, his sudden disappearance plunges his family into uncertainty. He is eventually located alive but wounded in a Kure naval hospital, a testament to the vulnerability of civilians entangled in military operations.

Within the family, his bond with Suzu hinges on quiet respect and structured kinship. As patriarch, his steady presence fortifies the household’s equilibrium until his injury momentarily fractures this stability. The narrative prioritizes his role as a steadfast presence amidst turmoil over expansive personal history, framing him as a pillar of resilience amid crisis.