Akemi Kawakami

Akemi serves as a foster parent of Jin. Always addressed as Obachan/old lady/auntie by Jin Akemi was an exhostess who had a son she lost custody of to her exhusband. Her face was slashed by a crazed client who in turn suffered near fatal injuries by a young Jin having recalled how his grandfather was killed. She has been selling crepes at a roadside stall ever since. Wikipedia