There is new dialogue and one (non-combat) side quest that appears in the main game. It gets a bit awkward when you meet a character you already murdered in the side story.

Bedroom Eyes Hilda is too hard for Marianne to resist.

Miki, planning for her future? I like that. So, is she going to be spoiling Yoh for a change?

Gloria: My wish came true!

Someone call the Humane society!

I like how Shiro looks like a beckoning cat.

Honestly, girlfriend. Same.

DLC please!

You can't just break Edelgard like that!

Wouldn't it be great if Palutena showed up in FEH?

Judging by Kageko's face, that "wholesome" tag's days are numbered.

We got metric TONS of Yuri fan art. With the way Petra and Dorothea are gazing at each other, they're about to start a New Game+

If the the French, lesbian, otaku mermaid had cat ears...

Bow has two dad's, and several brothers. No "mom" in sight.

Now that those hooligans are dead, can we get back to these two idiots , flirting?

This is the best timeline. Dorothea needs to use this power to convince Rhea and Edelgard to bury the hatchet (heh) and share Byleth.

Catherine and Shamir are my TOTALLY STRAIGHT aunt and her "Friend." Who always come to family gatherings together. And live in together. And share a room. And share a bed.

Nothing to see here, folks!

When a Knight wears her Lady's colors.

I feel bad about killing Hilda in CF. Especially, since I recruited Marianne.

After watching Adora bang her head against her Art History thesis, Theater major (of course) Catra forces her girlfriend to take a break.

I can't with these two. Even pre-bloody retribution, they'r just so cute! Can Sakurako hurry up and slaughter these losers so we can get back to the good stuff?

Yoh, Miki, and Kuki all get what they want. Is this the fabeled "Golden Route?"

I worked hard to recruit everyone to the Black Eagles, before the time-skip. Marianne is a sweetheart, so I couldn't leave her alone. Unfortunately, Hilda is off limits on a CF run.

Luckily, she was on the other side of the map, when I took Hilda down.

Did Ingrid bring a Spear to the beach? That's in character.

Koguma has good taste. So does Hino.

I'm sure there's something, somewhere, in some international treaty on human rights, that outlaws stopping a yuri story at that point.

I'm calling the U.N.