Kaomisa

Kaomisa is the femslash ship between Kaoru Seta and Misaki Okusawa from the BanG Dream! fandom.

Canon
Kaoru and Misaki are both members of the band Hello, Happy World!; Kaoru is their guitarist, while Misaki doubles as the DJ and band's mascot Michelle while wearing the pink bear costume onstage. Kaoru is a third-year student at Haneoka Girls' Academy, while Misaki is a second-year student at Hanasakigawa Girls' Academy. The two first met in Hello, Happy World!'s First Band Story.

Initially Misaki got easily annoyed by Kaoru's dramatic and bombastic personality, but as the story goes on she starts respecting and getting along with the latter. She tends to be praise or express admiration towards Kaoru whenever she shows off her skills. Whenever Kaoru sees Misaki troubled, uncertain or in a sad mood, she does her best to comfort her, even if it's just by misquoting Shakespeare. She sometimes has referred to Misaki as one of her kittens as well, which has made Misaki blush. Just like the other Hello, Happy World! members she loves Michelle and always has a fun time performing with her. It is implied on multiple occasions that Kaoru is aware of Michelle being Misaki, but is just playing along for Kokoro and Hagumi's sake; as a result, Misaki calls her one of the "three dummies" (sanbaka in Japanese).

The two have been featured in plenty of events (outside Hello, Happy World!'s full-band events) together; in the "Kaoru's Fleeting White Day Musical" event Kaoru asks Misaki to arrange a song and perform as Michelle for her White Day's musical, and despite her resistance at first, she decides to take part in it. In "A Dreamy Promenade", the two bump into each other and manage to find Chisato and Kanon trying to go to a cafe two stations away; they start following the two due to Kanon's terrible sense of direction, and Chisato's struggle for changing trains. In "Do It Ourselves!!", Kaoru gets into Misaki's felting hobby and they hold their own booth during a handicrafts event together with Lisa, Eve and Tae.

In Hello, Happy World!'s Second Band Story "I Need You!", Misaki starts doubting whether the band actually needs and wants her instead of just Michelle. When Kaoru and the others realize Misaki is struggling with her position in the band, she goes to talk to her in Chapter 9 and Misaki asks what Kaoru felt like being forced to act in roles she wasn't fond of. Kaoru tells her that she didn't mind them at all, because every version of her is part of her, and if it made people happy and smile, she could love that side as well.

In "A Fleeting Night's Dream", after Misaki ends up feeling depressed fighting with her parents over them throwing out one of her books, Kaoru invites Misaki to her house under the guise of "wanting to rearrange her room and needing Misaki's advice", which cheers Misaki up. After hanging around for a while, the other Hello, Happy World! members send her messages asking if she's okay, which ends up to Misaki telling her she's at Kaoru's house and the others deciding they want to host a sleepover there. During night both of them have trouble sleeping, and they end up having a heart-to-heart, which manages to cheer Misaki up again. Kaoru then starts talking about random animal facts until they fall asleep.

Kaoru also often goes to ask Misaki for help when it comes to various things, such as rehearsing her lines for her plays. In one of the lounge conversations she gave Misaki a letter telling it was a letter of appreciation for Michelle, which made Misaki unsure whether she's allowed to read it or not.

Fanon
Kaomisa is Kaoru's 2nd most popular ship after Kaochisa, and the ship has a positive reception in the fandom. It was initially considered a rarepair, but gained popularity quite quickly.

Fandom
Misaki/Kaoru tag on AO3