Mizuena

"'What I mean is-- If telling me makes you suffer, then you don't need to tell me anything. But it doesn't mean that I give up! I still don't want to see that sad face of yours, and I still want to help you. Therefore... One day-- If one day you feel like talking, tell me. I will wait until then.'""- Ena to Mizuki in the 'My Footsteps, Your Destination' Event Chapter 8"

Mizuena is the non-binary ship between Mizuki Akiyama and Ena Shinonome from the Project SEKAI fandom.

Canon
Mizuki is a first year at Kamiyama High School and Ena is a second year who attends night classes at Kamiyama High school. They are both part of the music circle "Nightcord at 25:00", also known as Niigo. Mizuki being the animator of the group under the alias of "Amia", and Ena, the illustrator with the alias of "Enanan", the two also work on the music videos together. They are also both interested in fashion.

Mizuki is seemingly carefree, though they can act as the most mature member of Niigo, mediating the arguments. They hide a secret from the rest of the group and is afraid of them finding it out, though Ena is aware they are hiding something. Ena is strong-willed and attention-craving. She suffers from feeling that her art is not good enough, and that she is talentless. Mizuki describes her as a "tsundere". The two bicker a lot.

Secret Distance
Niigo go on a mystery tour. Mizuki wants to stay with Niigo, but feels that the others will no longer want to be around them if they find out their secret. Ena wakes up and notices something off about Mizuki, while Mizuki starts building a wall between them and Niigo.

Quotes
"'Huh? It means exactly as I said. It means that until Mizuki can tell me everything, I can wait forever.'""'To be honest, I'm very bad at waiting, but I will wait specially for you. That's why -- make sure that you will tell me one day.'""- Ena in My Footsteps, Your Destination Chapter 8"

Fanon
Mizuena is one of the most popular ships in the fandom, though it is rivaled by other Niigo ships such as Mafuena, Mizumafu and Mizukana. On AO3, it is Ena's second most popular ship and Mizuki's most popular.

Fanfiction
Akiyama Mizuki/Shinonome Ena on AO3

Art
みずえな on Twitter

みずえな on Pixiv

Trivia

 * Mizuki follows Ena's social media.
 * They currently have 3 covers together, "Charles", "Keita Renwa" and "Venom".
 * Ena's little brother, Akito, is referred to by Mizuki as "otouto-kun", which translate to "little brother-kun".