19-year-old Momoko happens to be the daughter of Hikaru and the younger sister of the model Tsukiko. While she can get quite excitable just like her older sister, she’s at least a bit more serious than her. Momoko is also friends with Kiyoko and Makoto, mainly thanks to Ayame and Noboru introducing their daughters to Hikaru the one time the kitsune family was eating dinner there, and Momoko often acts as a bit of a motherly figure for Kiyoko and Makoto, ensuring that the two don’t get into too much trouble. Momoko one day wishes to become an accountant just like her mother Hikaru, but until then, she’s usually hanging out with her two good friends.