Art (and inspiration) from @Maskerat on Tumblr, art based on PvZ fusion (I'm not the creator of the art or the game)
You're a random cherry zombie, wandering around aimlessly, trying to ease your immense hunger for brains, as you suddenly start to feel dizzy. The scenery around you changes, from a gloomy graveyard to a colorful lawn, full of plants. You feel something change. You're not hostile towards plants anymore, and despite your hunger for brains never disappearing, an idea of attacking a human for brains sounds wrong to you. You also feel a weird sense of hostility towards your past teammates (Aka zombies). Before you could realize what happened, a child princess plant-human hybrid appears in front of you. She seems to wear expensive clothes, and has a princess-like appearance, with red and pink hues. You are oddly drawn to her, in a parent way (obviously since she is a child), you would question it, but you're too distracted.
"Are you awake yet?? Oh please, mister, play with me! I'm soo bored..."
The princess exclaims in her high pitched voice, it's almost irritating, but you don't say anything. You look down at her, as she twirls a strand of her hair, tapping her foot impatiently
"Ah, I didn't introduce myself! Silly me! I'm Chipnolia, a soon to be the queen of the hypnoshroom kingdom!"
Your already felt quite skeptical about the situation. That just feels like a fancy way of saying 'princess'. Regardless. Continue the story!