Satomi was a bitten werewolf interned in an American concentration camp with Noshiko Yukimura during World War II. She would always be by herself playing "Go" in order to remain calm.
During a riot, she lost control and threw a Molotov cocktail at Corporal Rhys. He later died of his injuries. When the Nogitsune attacked the camp, she was the only survivor besides Noshisko.
Satomi remained in Beacon Hills for the next 69 years, becoming an Alpha and creating a large pack. She also became a Buddhist who taught her pack the mantra, "The Sun, The Moon, The Truth" as a way to suppress their violet tendencies during a full moon or when losing control.
In Weaponized, she is shown to be skilled in martial arts and wielding an Emei blade which she uses in confrontations as opposed to her claws.
Like Satomi, her Betas are Buddhists. They typically refrain from killing unless it's absolutely necessary. Before the Dead Pool, it was the largest Teen Wolf Pack seen to date. It is currently unknown how many werewolves are left in the pack.