Hiroshi Shinazugawa

Hiroshi Shinazugawa was a younger brother of Sanemi and Genya Shinazugawa.

Appearance
Hiroshi was a boy of average height for his age, with large round blue eyes and a light skin tone. His hair was shaved along the sides, except for a small crop at the top of his head styled into a mohawk. He bore a great resemblance to his brother Genya and his mother.

Hiroshi wore a navy blue kimono and grey pants.

History
Hiroshi was born to Kyogo Shinazugawa and his wife Shizu. He had 6 other siblings, the oldest two being Sanemi and Genya. Though his father was incredibly abusive to his family, Hiroshi was often protected from his outbursts by his mother. Some time later, Kyogo would meet a violent end by getting stabbed to death in a grudge.

One night, their mother was late to come home. As Hiroshi, Sumi, Teiko, Koto, and Shuya slept, Sanemi decided to go out to look for. Genya stayed behind to watch the rest of them and they woke up shortly afterwards. As they waited for their mother, they became concerned as she had never been so late before, with Genya trying to ease their worries and asking them to go back to sleep.

A loud knock then rang from the front door, leading Hiroshi, Sumi, Teiko, and Shuya to run and greet their mother. Despite Genya's warning that the figure outside may not be her, the door broke open. Their mother, who had transformed into a demon, entered and killed the four instantly.

Swordsmith Village Arc
In his battle with Upper Rank Four Hantengu, Genya tries but fails to cut through his durable neck. In that moment, the demon's manifestation of anger appeared behind him and prepared to stab him in the head. Realizing he cannot dodge the blow, Genya's life flashed before his eyes, reminiscing on his past and the death of his siblings and his mother.

Sunrise Countdown Arc
Following the defeat of Muzan Kibutsuji, Sanemi found himself in the afterlife as his life faded from his wounds. He saw that in heaven was Hiroshi, amongst their other siblings.

Trivia

 * Hiroshi's given name contains the kanji for "vast, broad, wide" (弘).
 * Hiroshi's surname Shinazugawa contains the kanji for "immortality, eternal life" (不死) and "river, stream" (川).