Told from the viewpoint of the father Morio, "A Boy Called H" follows a young boy named Hajime Senoh, nicknamed "H". His father, Morio runs a tailor shop. With the onset of World War II, their family must endure difficult times. Nevertheless, H is filled with curiosity and a sense of justice. Based on the autobiographical novel "Shonen H" by Kappa Senoh (published by Kodansha, July 9, 1999).

Yutaka Mizutani
as Morio Senoh

Tatsuki Yoshioka
as Kaoru Senoh (H)

Ran Ito
as Toshiko Senoh

Yurine Hanada
as Yoshiko Senoh

Shun Oguri
as

Taichi Saotome
as

Kuranosuke Sasaki
as

Taizo Harada
as

Ittoku Kishibe
as

Jun Kunimura
as