Kasumi Ogata is a 47 year old transgender female bat, the wife of Mariya and the "father" of Hiroki. She is a very strong bat, and would protect those who would need it most. She met Mariya when she was still a he in high school at the age of 15, they began dating shortly after. Right after the both of them graduated, now 18, she witnessed a transgender woman being harassed by someone. Kasumi went to beat up the harasser, this inspired her to transition in the hopes of inspiring other trans people, thanks to the help of Mariya and Mariya's mom, she was able to transition successfully, and she felt more happier with her new self. Eventually, she married Mariya and they would both birth and raise Hiroki.