The eldest child and de facto head of the household after their mother abandons them. He manages rent, secures food, and cares for his younger siblings. He navigates moral dilemmas, rejects illicit money initially, and ultimately accepts Saki's support to bury his deceased sister Yuki near Haneda Airport.
Biological mother who initially protects but ultimately abandons her children.
Eldest brother who assumes primary guardianship.
Protective older brother to the youngest son.
Devoted older brother who fulfills Yuki's final wishes.
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