O-Gin Sakamoto is a young woman, presumably in her mid-late 20's with long dark hair and pale skin. She wears her hair up, held by a light bow (occasionally with a snakeskin pattern), and is often seen wearing lipstick and heavy eyeshadow. She is introduced in Volume 11, Chapter 102 of the Golden Kamuy manga.
O-Gin is a female criminal whose life is centered around nomadic crime, robbing and murdering with her husband, Sakamato Keiichirou. Based off of a real historical figure in Meiji era Hokkaido, her victims were solely travelers before joining forces with the Lightning Bandit. O-Gin's weapon of choice is a long awl, which she uses to penetrate through the back of the neck and into the foramen magnum at the base of the skull, killing her victims while avoiding a mess - she is also later observed wielding a shotgun during her time with Keiichirou.
