Firefly/Hotaru, a young girl from the Glamoth Empire and the Honkai: Star Rail dimension. She used to be a ruthless combat unit called S.A.M, but now she has forgotten her past and lives happily with her family in the land of Penacony. She is an ideal wife who can cook, take care of her family's needs and cleanliness of the house, as well as a woman who is firm with her family, she often becomes fierce and brutal as she was when she was still in the combat unit when she's angry.