Yuka Nishimura

Yuka Nishimura is one of Kiyomi Sakura's classmates who also becomes friends with Ika Musume, (Squid Girl). Yuka is shown to be very nice and outgoing. Yuka is also a member of the Invasion Club. She is usually the one that comes up with ideas for what the Invasion Club should do next. On a day that the Invasion Club meet up without Kiyomi, Ika, (Squid Girl), observes that Yuka prefers active hobbies (such as batting practice) over passive hobbies (such as shopping). Yuka's background differs between adaptations. In the manga, she is introduced as a member of the badminton club in Kiyomi's school, while in the anime, she is in Kiyomi's baseball team instead.