Manami's elderly grandfather who enjoys walking on the beach and is deeply affected by both Yujiin’s disappearance and his own relocation experience.

Manami’s best friend, also a 10-year-old Japanese American girl, who remains upbeat and supportive of Manami despite the challenging circumstances.

Manami’s gentle yet strong and resilient mother who tries to maintain normalcy and care for her family despite their difficult situation.

Manami's hardworking fisherman father, who is dedicated to providing for his family even in dire circumstances and values family and tradition.

Manami's older brother, a college student who chooses to join the family in Manzanar, demonstrating familial devotion and grappling with his sense of duty.

A compassionate and open-minded young teacher at Manzanar who supports the children, including Manami, with kindness and patience.