Kaochisa

Kaochisa is the femslash ship between Kaoru Seta and Chisato Shirasagi from the BanG Dream! fandom.

Canon
Kaoru Seta and Chisato Shirasagi are childhood friends that grew up together, mostly due to their parents who were acquainted with one another. The two go on to become close friends and join their bands respectively, Kaoru being the guitarist of the band Hello, Happy World! and Chisato Shirasagi being the bassist to the idol band, Pastel*Palettes. Both girls are third-years but while Chisato attends Hanasakigawa Girls' Academy, Kaoru attends Haneoka Girls' Academy. They follow the childhood friends to lovers trope.

The two have a complicated relationship following up into middle/high school. At first, as shown in two area conversations, Chisato dislikes Kaoru's advances and prince-like persona, stating that she knows "The real Kaoru." Kaoru does not seem to mind this, and the two continue to be friends.

In "A Roses Name in a Transient World", Kaoru invites Chisato to play Juliet in her schools play of 'Romeo and Juliet' for the Cultural Festival, where Kaoru would be playing Romeo. Chisato accepts the invite, and continues to audition and get the role as Juliet. As she enters, Kaoru comes in and refers to Chisato as her "Juliet", and continues to refer to her as Juliet throughout the event. After the two do the reading of the script together, Chisato goes up to Maya and compliments how well Kaorus acting is. In the later chapters, Chisato talks to Kaoru about the play, and their past together. She mentions their childhood nicknames for each other where Chisato would call Kaoru "Kao-chan" and Kaoru would call Chisato "Chii-chan". The mention of her old nickname flusters Kaoru, and she asks Chisato not to bring the name up. Chisato continues to call Kaoru that, since her being flustered is cute. After another reading of the script, Chisato goes back to Maya to talk to her about Kaoru, mentioning that they might be more simple when alone together. In Chisatos card story for the event, Kaoru is confused on why Chisato has had some change of heart, in which she replies "When I'm with you, I can be a version of Chisato Shirasagi who is not a performer or entertainer."

In episode 24 of BanG Dream! GARUPA☆PICO ~Ohmori~, Kaoru and Chisato find themselves together at Hazawa Coffee. The two sit at different tables, and Kaoru throws compliments over to Chisato as she waits for Kanon to come by. The two help each other look for Kanon, and as she arrives, Kaoru mentions that Chisato being in a panic was cute. This flusters Chisato, and in retaliation, she calls Kaoru "Kao-chan", which also flusters Kaoru.

Theres also an event where it looks in on Chisatos and Kaorus childhood together, but it has yet to be translated and added to the english version to the game.

Quotes
"Oh? Is it truly that surprising for us to be a team? I see... So I've never mentioned this. Actually, Chisato and I are longtime companions. Certainly a long-term relationship is something, but I could feel our bond deepening as the rehearsals were added to the mix. It was possibly... the sensation of our hearts simultaneously opening up, even wider than before. Because of that, we were able to deliver a harmonious performance. Including the two girls from earlier, all of the spectators were elated. I am glad we decided to ask Chisato to play Juliet. Without her, such a coordinated performance would certainly not have been possible. In what way did our hearts open up? *blush* Th-that... ... That... is a secret, between Chisato and me. For me to carelessly divulge that information would be discourteous to her. ... ... Wh-why don't we talk about something else? Aren't you curious to know more about me? Go on, ask whatever your heart desires!"

- Kaoru speaking to the player in Kaoru's Special Episode, "Experience Transience"

"How did I finally grasp the role of Juliet? Fufu, you want to know? ... I didn't really want to say it, but actually, it was because of Kaoru. When I'm with her, I'm not the me who's part of Pastel＊Palettes. I'm the longtime friend of Kaoru. Similar to how Juliet was able to love Romeo and not be bound by her name. And because I was a version of me not bound by my own name, I was able to play the role of Juliet. Now that I think about it, not being able to get past my own thoughts to play a role means I have a long way to go. And to think Kaoru was the one that helped me... Not that she seems to realize it in the least..."

- Chisato speaking to the player in Chisato's Special Episode, "The Color of a Rose"

Fanon
Kaochisa is one of the most popular pairings in the fandom. It's the most popular pairing for Kaoru, and is one of Chisato's most popular. It has a lot of work made surrounding it, and is the 3rd most written pairing on the Bandori tag for AO3. It is often rivaled by Chisato's other main pairing Ayachisa, and more recently has started getting a rivalry with Tomokao. Although while it is one of the popular more notable pairings in the fandom, a large part of the fandom also has a generally mixed response to this ship. Some fans claim that Chisatos actions towards Kaoru are "toxic" and that ship in general is unhealthy because Chisato is cold to Kaoru. Other fans appear to think otherwise, that the ship is healthy and that the two have a healthy dynamic, since the two understand each other. Other factors that makes this pairing shipped often is their complimentary colors (yellow/purple), the childhood friends trope going on, and the fact that Chisato not only is somewhat unfazed by Kaoru's persona, but successfully made her blush several times. After the Childhood event together, the ship was less hated on and got much more approval, although since the story is not officially translated in the english servers, overseas fans are still skeptical over the pairing, still making it the most debated/mixed opinion pairing in the fandom.

Fandom
FAN FICTION

PIXIV
 * かおちさ posts on Pixiv

Trivia

 * In Chisato's Card Episode for the "A Sigh After the Rainfall" Event, Chisato gifts Kaoru yellow hydrangeas. Hydrangeas are often given with the meaning of apology and gratitude.
 * In the 1-Koma "A Shining Aura", Kaoru's bandmate Kanon makes a comment that Chisato and Kaoru "shine so bright they could guide Santa's sleigh."