Kei is the conflicting main heroine of ef: Tales of Memories. She is Hiro's childhood friend. Kei is one year younger than Hiro and calls him oniichan, or older brother. Both of them attend the same school.

Kei is also Hiro's neighbour. She helps Hiro with various house chores and she often goes to Hiro's house just to wake him up. Kei knows that Hiro is a mangaka and keeps it a secret. She wakes Hiro up if he had spent the previous night working on his manga.


Kei's strong point is playing sports. She is very athletic and is the star player of the girl's basketball team of her school. Kei is ultimately attracted to Hiro ever since childhood. Kei becomes very jealous when she finds out how much time he is spending with Miyako Miyamura. She thinks that Hiro is giving Miyako unnecessary attention; Kei thinks Miyako is a nuisance and a complete stranger that barged into their lives.

Visit Kei's page.