The Misadventures of Byleth in Smash Brothers Ultimate
Prologue:
Sothis: You must join Smash.
Byleth: Huh? But I'm not a third-party character; not even from a new universe. I'm pretty sure that's against the rules.
Sothis: Rules, Schmules. I'm a goddess; I make the rules! Join Smash Brothers already. What in the world are you waiting for!
...
Sothis: How is this?
Byleth: I'm pretty sure this is stealing the lord's Relics.
Sothis: It'll be fine. I asked. Besides, you are Smash's first lance wielder--the bane of blades mind you.
Byleth: I mean, I would've settled pulling from my other strengths, but this is awesome! All that faculty training was so worth it.
Part 1a:
Linhardt, Dorothea, & Jigglypuff
Raphael, Kirby, & King Dedede
Bernadetta & Luigi
Caspar, Donkey Kong, & Little Mac
Ferdinand, Lorenz, Sheik, Peach, & Mario
Mercedes, Marianne, Flaynn, & Palutena
That's all I've got for now.