In the world of Genshin Impact Tomoe lives in Inazuma Raiden shogun found her and was adopted and raised by the Tenryou commission to serve the shogun as her samurai. Tomoe was born with a terminal illness that is slowly killing her which causes coughing. She is also a born Oni and wields an electro vision along with excessive physical strength capable of lifting boulders and run at high speeds due to her race. Current rank in the Tenryou Commision is Right Hand of the general Kujou Sara.