Yumiko Tachibana

Yumiko Tachibana (橘 由美子 Tachibana Yumiko) is the wife of Kōichi Tachibana and the mother of Aiko Tachibana and Ryota Tachibana who was trapped inside a cocoon of matter with Ryota for a period of time until she was released.

Etymology

 * The name Yumiko means "reason, case, cause" (由) (yu), "beautiful" (美) (mi) and "child" (子) (ko).
 * Yumiko's surname Tachibana means "orange, tangerine" (橘).