Eufei

Eufei is the femslash ship between Eula Lawrence and Yanfei from the Genshin Impact fandom.

Canon
The two were announced together in the trailer for the 1.5 update. They are presumably friends in canon. They frequently exchange letters. And both have stated that they find the other pleasant and an enjoyable person to speak with. However, at present time, the two have not interacted in-game.

In Eula's first voicelines about Yanfei, she tells the Traveler how she and her scouting team ended up saving Yanfei's life some time ago. When they intercepted a load of dangerous cargo in Liyue Harbor sent by the Abyss Order, Eula ends up saving Yanfei's life. In her second voicelines about her, she states that she has kept in touch with Yanfei via correspondence since then. She says that she likes how intelligent the other is. She mentions she admires how Yanfei can adapt to situations easily. Also, she mentions Yanfei owes her a favor. And that she could take advantage of that to enlist help in tracking down someone she's looking for (presumably a family member, as Eula isn't particularly close with them anymore).

In Yanfei's voicelines about Eula, she talks about how Eula saved her and kept correspondence since. She shares that she finds the both of them similar and that they get along well. Similar to Eula, she states that the other is flexible and able to adapt to situations well. However, she does say that she doesn't think she could ever be as carefree as Eula, as they are in very different lines of work.

Quotes
"Eula saved me once, and we've kept up correspondence ever since. She's very familiar with the Knights of Favonius' legislation, but has never been one to be bound by convention. She uses cunning logic to deal with problems flexibly... Perhaps the reason we get along so easily is that I'm a similar type myself. Still, I'll never acquire that carefree spirit of hers. We are in very different professions, after all."

- Yanfei's voiceline "About Eula"

"This one's a long story... we ended up saving her life once when we were tracking down a bunch of dangerous cargo that belonged to the Abyss Order. The Abyss Order had packed it up like regular cargo and wanted it shipped from Dornman Port to Liyue Harbor. She was acting as a consultant for the merchant vessel, where she discovered something in the cargo—and then began to investigate, putting herself in grave danger. Had we arrived just a few minutes later, it's likely she wouldn't have been so fortunate."

- Eula's voiceline "About Yanfei: Encounter"

"We've kept in touch ever since. I like how smart she is. She knows the rules but she also knows how to be flexible, and act according to the situation. A few of the knights would do well to take a leaf out of her book. Also, with her smarts, maybe she could help me track someone down that I've been looking for. She does owe me a favor from last time, after all."

- Eula's voiceline "About Yanfei: Assesment"

Fanon
Soon after the 1.5 trailer, their character details were leaked. There, it was revealed they had voice lines of each other and were friends. Furthermore, in the special livestream for the update, one of the game's voice actors mentioned that the two had "special relations" with each other. This lead many viewers to jokingly comment that they were girlfriends. Since Eula and Yanfei lack interactions, the ship doesn't have as much rival ships as others, though some nameable rival ships exist, particularly EulAmber and YanTao.

Fans of the ship enjoy them for many reasons. Some of the more prevalent ones being the red/blue color scheme, their opposing elements of pyro and cryo, and their contrasting personalities. Eula is more carefree, while Yanfei takes her work very seriously, creating a humorous dynamic between the two that fits in the "opposites attract" trope.

Fandom

 * FAN FICTION