Sachi Sokai
Current Spirit Detective of the human world, Riyo and Hiei's first child and only daughter, and Arataka's girlfriend (later wife). A bright and outgoing woman with a love of fighting same as her parents and master (Yusuke Urameshi). Greatly enjoys her work as Spirit Detective, but finds it isolating due to needing to drop everything to deal with trouble, which has led to not being able to keep a hold of platonic and romantic relationships throughout her 20s.
Once she decides to stick around Seasoning City, she ends up working on a freelance basis for Arataka's business.