Imagine Crowfeather and Leafpool having four kids except for three, and it is the Four except the Three.
The Fourth cat is a female.
And most of this is not canon since it's been a long time since I've read Warrior Cats lolol.
The light brown tabby's gaze darted guiltily and sadly towards the cheerful four kids, tumbling on each other, their small paws and tails slapping messily on each other's muzzles.
"Now now, Hollykit, be easy on Lionkit! StarClan, Jaykit, don't tumble on Cloverkit! (Yeah that's her name UWUUWU)" Squirrelflight hissed,