BioEditChiyoko is Chieko's mother. She is the owner of Amamizukan, but is rarely present as she is a groupie of Korean actor Bae Yong Joon and often travels to Korea just to see him. She decides to sell Amamizukan and use the money to move to Korea permanently and study the language. In English, she is voiced by Cynthia Cranz.
Chiyoko is obsessive and self-centered. She cares most about pursuing her own goals.