Originally known as Lizaryu in her youth. Liza was a slave belonging to a man named Urs, she became master-less after his death. Being initially low-leveled, weak, and trapped in the labyrinth, she pleaded Satou to take her with him, going as far as to offer herself as his literal shield. She officially became Satou's slave together with Pochi and Tama after leaving the labyrinth. Her forename is derived from her real name rather than the word "lizard" (at least according to Satou), as her real name is too hard to pronounce for human tongues. In her day-to-day life, Liza is normally very stern, acting like Satou's loyal bodyguard, a SP (Security Police), or conditioned soldier.

Spoiler

Many years ago before she met Satou, her tribe used to live in the wetlands, where she most likely learned how to use a spear and gained the Spear skill. However, her home was wiped out by the weasel tribe, resulting in her hatred, disdain, and short temper toward any weaselkin; a grudge she still holds to this day. She was kidnapped by a slave-hunting human when she was wandering with her family. It's unknown what happened to the rest of her family as it isn't mentioned again. After Liza is conferred the peerage of Honorary Baronetess, she takes up her tribe's name of Kishresgalza as her family name, losing her status as a slave and becomes the noble Baronetess Liza Kishresgalza, addressed as "Dame Kishresgalza". She remaines Satou's faithful follower and continued to be his loyal retainer.