Mako is born April 23, 2003 to parents Sumako and Masao Mori, a sword maker. An only child, Mako grew up in village in Tanegashima and lived a relatively comfortable and happy life with her mother and father. Mako would spend hours in her father's workshop, watching as metal is forged, hammered, cooled and sharpened into weapons. Her fascination with her father's profession instills tomboyish attitudes in her. At some point in time he gifts her with a Hanbō staff.