The main female character of the Cat Paradise manga, Yumi decides to take classes at Matabi Academy due to the fact that they allow students to bring cats. She is the current owner of her beloved cat Kansuke and seeks to fit in.
In Kansuke's flashback, she tries to shield Kansuke who's injured from a car.
Yumi Hayakawa is created by Yuuji Iwahara; she has no information regarding any inspiration used to create her at this moment. She first appears in Cat Paradise volume 1. Her Drama CD's Japanese voice actress is Aya Hirano.
Yumi arrives to Matabi Academy where she begins her first year. Her cat, Kansuke, fusses in her suitcase until she has to let him out. He complains about the clothes she gave him. Yumi bumps into Akifuji who tells her she's late to the opening ceremony. She arrives late where her friend, Nanako, informs her about the student council. When Akifuji wink at Yumi and her friend, Nanako gets all hyper which the vice president punishes them for being out of line. Yumi and Nanako find themselves scrubbing the statue. Suddenly, Tsukumo Isshu, the fox demon goes up to Yumi and her friend. After the two girls scream, Tsukumo tries to eat them, but Kansuke attacks Tsukumo only to get knocked out away.