Yumi is 36 years old and she is Eri's adopted mum Yumi is a famous "Artist" aka she steals Eri's artwork and says she made it. She adopted Eri after her sister left Eri as a newborn at her front door. Eri's og mum had gone missing at the age of 6 and was pronounced dead but really she was hookin up w/ the King aka Jay's dad from the fantasy world (they broke up thankfuly cuz no "Alabama mondays"/ref here ) Yumi is very aboseive to Eri both mentally and emotionally.