Akikasa

AkiKasa is the slash ship between Akito Shinonome and Tsukasa Tenma from the Project SEKAI fandom.

Canon
Akito and Tsukasa are both students in Kamiyama High School. The two were introduced to each other by Touya Aoyagi.

At first, Akito wanted to avoid the infamous troublemaker duo "Oddball One-Two Finish" around school. Because he only knew the two by their last names, and from Touya's favorable word, little did he expect one of the aforementioned oddballs to be his partner's respected upperclassman.

After learning about Tsukasa's fear of bugs, Akito would randomly tease the other for fun and tell him that these bugs are on his clothes when oftentimes they are actually not.

In KAMIKOU FESTIVAL!'s event story, after Touya explained his past and his respect towards Tsukasa, Akito muses that he should also express his thanks to the upperclassman.

Quotes
"Akito, I heard today is your birthday! Now, I will muster up all of my strength for this improv... Hey, wait! Where are you going—!"

- Tsukasa's birthday line for Akito (November 11, 2020)

Fanon
The ship is less popular compared to the other slash ships involving the four human male characters in the series, AkiToya and RuiKasa. Sometimes the shippers of AkiKasa and TouKasa have a shared audience, and ship the three characters together as a poly relationship named Kouhai Sandwich.

Fandom
FAN FICTION

PIXIV

Trivia

 * The two dislike a certain kind of vegetable. Akito dislikes carrots while Tsukasa dislikes green peppers.