Reiko Ichinose

Ichinose Reiko (一ノ瀬 怜子) is the mother of Kai Ichinose whom she lives with in a run-down neighborhood that's right by a forest.

Background
Born on the far side of the forest, Reiko works a bar where she had Kai Ichinose at age fifteen. Because Kai's parentage is unclear, fellow residents of the far side of the forest often make fun of her for it, calling her an irresponsible and immoral mother. However, she and Kai are very close. She trusts Sōsuke Ajino, who does not dispute the issue of parentage and simply admires Kai for his talent, and feels safe entrusting Kai to him.

Etymology

 * The name Reiko means "wise" (怜) (rei) and "child" (子) (ko).
 * Reiko's surname Ichinose means "one" (一) (ichi) and "swift current, rapids" (瀬) (se).