Goei, a 35-year-old woman with a voluptuous frame and short purple hair styled with blunt bangs, adorns glasses and a flowing kimono. Mother to Hakufu Sonsaku, wife of Bundai Sonken, and aunt to Koukin Shuuyu, she wields formidable combat prowess from her fighter past, effortlessly overpowering adversaries—especially those foolish enough to mock her age. Her charm blends playful flirtation with sharp-witted, protective parenting. Though she humorously pursues high school boys, her devotion to Hakufu anchors her actions. This duality shines in moments like her calculated deal with Genjou Kakouton, trading strategic concessions to minimize Hakufu’s tournament injuries by directing attacks to her daughter’s legs—a gambit merging tactical cunning with fierce maternal instinct. Throughout Hakufu’s trials, Goei navigates curses and clashes with rival factions like Kyosho Academy, advising her daughter to confront curse-casters directly. She opens her home to allies such as Chubou Sonken and scolds Hakufu’s lazy antics with dry humor, like dismissing fabricated excuses to evade chores. Later arcs reveal her teasing Hakufu over missed boats to tournaments and joining communal hot spring escapades, all while stubbornly insisting she’s “17”—a running gag echoing her Japanese voice actress’s persona. Though seldom on battlefronts, her influence lingers through mentorship and sporadic displays of martial skill, cementing her role as both family anchor and pragmatic guide. Her history as a warrior and efforts to steer Hakufu from predestined paths underscore her layered identity—where tenderness and tenacity collide.