First appeared in Chapter 32, she becomes the third member of Tomu's three man team for the Abidani Seminar Dice Challenge. She is known for being skilled at knitting, winning many Craft Contests. She shows up to join near the end of the month, wanting to do so earlier but was only recently able to gather the courage to do so. It is later revealed that she is also a mathematician, able to do 5 digit calculations in her head instantly, which Tomu sees as a great asset as they won't know the rules to the game till the start of the match. Her reason for joining is because she wishes to use the money won in the match (3,000,000 yen) to be able to study abroad as a knitting designer, as her parents wouldn't pay for it as they wish for her to attend medical school to continue the family practice. Natsumi gets easily jealous of her because she believes she has feelings for Tomu as well. It is later revealed she is currently being held in Abidani's reflection room and was replaced by the look alike Hiruko Nana from the Abidani Seminar, so it is currently unknown how much or if any of this profile is true.