Ichiko

Ichiko is the central figure who endures a fragile family situation from childhood, is subjected to care burdens for Tsukiko, and later leaves home to survive on the streets. Her life expands through friendships and a dream to run a cake shop, but she remains haunted by her past and the violence that surrounds her. She builds and abandons identities as needed to endure a city that often fails the vulnerable.

Koizumi is a social worker who becomes entangled with Natsumi and abuses Ichiko, later losing his job and drinking heavily. His actions culminate in violence that ends with his death at Ichiko's hands, marking a brutal turning point in the young protagonist's life.

Twice-divorced and a single mother, Natsumi struggles to care for her children while managing precarious relationships. She becomes involved with Koizumi, and together they attempt to hide Tsukiko's fate by burying the body, a decision that reverberates through Ichiko's life and her own sense of truth.

A man who knows little about Ichiko at first, Hasegawa becomes her partner and shares three years of life together. He proposes to Ichiko with a wedding certificate, only to confront the unraveling of her past as the mystery of her identity comes to light.

A detective who interrogates the tangled strands of Ichiko's life and the Kokpo case, revealing that the registered identity may not align with the truth. His investigation helps connect the dots between Tsukiko, Ichiko, and the skeleton found on Mt. Ikoma.

Kita is a classmate who spies on Ichiko and harbors a crush on her. He is part of the memory of Ichiko's school years and later encounters with her life, symbolizing a past connection that lingers in the background of her journey.

A friend who dreams of becoming a pastry chef and invites Ichiko to help open a cake shop in the future. Kiki offers a path toward a hopeful future and serves as a key ally in Ichiko's quest for stability and a sense of purpose.

A character in the film whose specific actions are not detailed in the provided summary, but who participates in the narrative's network of relationships and events surrounding Ichiko's world.

A young woman Ichiko meets via social media who expresses despair and asks for help to die. Kita and others become involved in this troubling moment, highlighting the film's exploration of loneliness and the boundaries of aid.

A cast member whose specific on-screen role is not detailed in the provided summary, but contributes to the film's ensemble and the world surrounding Ichiko's experiences.