Protagonist who moves to the Seto Inland Sea after her father's death. She navigates grief, befriends local children, manages mischievous yokai, and ultimately reconciles with her mother while completing her father's unfinished letter.
Koichi serves as a reliable adult figure who coordinates with Momo during emergencies.
Mame functions as a supportive member of the yokai trio assigned to watch over Momo.
Kawa's careless action initially triggers conflict but later shifts to cooperation.
Iwa acts as the primary supernatural protector and guide for Momo throughout her emotional journey.
Explore the full interactive character relationship map of A Letter to Momo