Best Sylvix Angst Fanfics

by firegrilled

Several thoughts ran through Caspar's head when someone knocked on his door at the crack of dawn:1. Why was Linhardt awake before lunch?2. Why was he holding a baby?3. What did he meant that the baby was his?AKA Caspar has fatherhood thrust upon him by his best friend's careless actions right before

by lousyprotozoan

"You know I can look after myself." Something must show on his face, because Felix's eyes narrow. "Don't you?" Loving Felix to the point of martyrdom, he realises with a sinking dejection, is something he's content to do without recognition. Particularly when on paper he looks like a jealous, patron

by SunshineOnACloudyDay

What if Jeralt were a main character? What if he was the professor instead of Byleth? What if Byleth had the chance to play student, and got to be a young and socially awkward adult instead of being thrust into the 'Professor' role? What if Jeralt (very reluctantly) adopted each of the Blue Lions? T

by Dynames

An alternate take on canon to give Edelgard the story she deserved and the house leaders the friendship they should've had with a heavy, HEAVY emphasis on Yurileth. It starts with Azure Moon, but adds in Verdant Wind's and Silver Snow's unique chapters while also yoinking lore from Crimson Flower an

by softhan

the long awaited sequel to my epic nonbinary sylvain story, following two timelines: the harrowing lead up to the birth of Dimitri and Dedue's twins, and the significantly less harrowing journey Felix and his wife take to becoming parents a few years later.If there's one thing that can be said about

by driftersheart

[FROM: Ingrid] Sylvain, just…don't. I don't know how to put this nicely. I think it's a bad idea. You're more likely to hurt him than make him happy.......A break-up, a wedding, and the seven years in between.Ex-lovers Felix and Sylvain reunite years after a messy break-up to plan for Dimitri's wedd

by new_momentum

Felix pressed his face to one of the scars on Sylvain’s back, just one mark among dozens—of years’ worth of birthdays-past when they hadn’t had the luxury of keeping an eye on each other. He hoped this could hold Sylvain over until they got back to the monastery and he could give him the gift he’d r

by Kinomiya

morass.mo·​rass | /mə-ˈras/ 1: any confusing or troublesome situation, especially one from which it is difficult to free oneself; entanglement.or: Felix Hugo Fraldarius has ZERO impulse control.

by GlintOfDawn

Sylvain returns to a lonely Felix and is made to show his apology. Sylvain learns he kinda likes it.

by SunshineOnACloudyDay

I used to joke that "Stick Season" by Noah Kahan was a Sylvix fic album, and now his new album "The Great Divide" has left me with an itch I have to scratch. This fic will have chapters inspired by each track of the album, all telling the story of this Modern AU. Flashbacks throughout with multiple

by wyruin

In order to save his negotiations with Sreng, Felix pretends to be Sylvain’s wife for a night.

by CinnaBunni

"Where is he?" Felix hissed for the dozenth time. "I don't know," Sylvain answered testily, the exact same response he had given also for the dozenth time. He could feel his daughter's hand squirm in his own. "Perhaps we should ask his partner in crime." (Felix and Sylvain's sons were going to atten

by cat_felixx

Neither Felix nor Sylvain really knew what made all this… happen. Obviously they knew when it all started. Everything started normal: a few teasing jabs from Sylvain, Felix scoffing in annoyance to get him to focus, but somehow, all of that got forgotten when Felix had the sudden bright idea to kiss

by Kinomiya

covet.cov·​et | /ˈkə-vət/ 1: to desire wrongfully, inordinately, or without due regard for the rights of others.2: to wish for, especially eagerly.or: Felix and Sylvain get reacquainted with one another.(Deleted scenes from Desiderate)

by a_quatre_feuilles

A poem from Felix's POV about Sylvain based on their support conversations.

by thefriedpipes

Leave it to Sylvain to get the fuckfest going.

by AzzureThunder

You won't live forever in their memories. The way you treated them will. [Also, it's not forever because they'll die too.] After Miklan’s Transformation, the Lions visit Fraldarius estate before going back to Garreg Mach.

by Calithetil

War changes people. No one can handle it alone, so why should Felix? A short story of Felix and Sylvain after our brooding baddie gets knocked out during battle.

by yuripunch

Sylvain is supposed to deliver a eulogy at his father’s funeral but nothing comes to mind. What the fuck is he supposed to say? He hates that he's freaking out about this. He could lie and say his father was a warm, compassionate man, or that he’ll cherish all the good times they spent together. Ha,

by Aged 10 Years (SaltyYoolk)

In the aftermath of the unification wars and the descending madness engulfing Fódlan, Sylvain could have never dreamt of the unending nightmare awaiting him. But he also could have never dreamt this up either yet here he was again. He couldn’t say he wouldn’t give up anything for this because he wou