You know what since I am mentioned as being a part of the doc these headcannons are from I might as well add the ones that belong to me
RamonaBlueCat’s Random Headcannons/Scenarios:
Klug has a set of stuffed animals from when he was a little kid that he refuses to get rid of. They’re comfort items (if the Tome of Sealing isn’t working as one, he’ll grab one of them instead)
Klug has three stuffed animals, a cat with a galaxy motif, a star that looks somewhat similar to the Lumas from Mario Galaxy, and a demon dogo.
The cat and the star used to be one plushie, but sometime when Klug was still a little kid he very carefully separated them so he would have two plushies for the price of one, you can’t even tell they were once connected.
If the other Primp students were to find out about his little plushy collection:
Amitie and Lidelle would find it cute, and Amitie would probably try to give Klug another plushie.
Raffina would act like she finds it ridiculous, but would secretly contribute to the collection.
Sig just straight up wouldn’t care. He’d just be like “huh, neat."
Strange Klug can’t cook a meal to save its life. At best the meal will be at least somewhat edible, at worst it’s straight up charcoal. It somehow burned WATER while trying to boil it once.
This is the complete opposite of Sig’s cooking ability, he’s actually really freaking good at cooking.
By extension: The Original Demon also can’t cook to save their life, but that doesn’t really matter now because they’re long gone.
Sig’s parents run a bakery. Sig is responsible for one of the menu items: Bug Bread (basically just a loaf of bread in the shape of a bug.) (this is based off of Sig’s Steam City Alt)
Field trip to the town Klug and Lemres are originally from (I can see everyone other than Klug being like “Wait you’re not from Primp?” and Klug is just like “Yes… I’ve never once said I was from Primp.”)
AU where Sig and Klug are (adopted) brothers. Basically Klug is adopted by Sig’s parents when the two are still very little (3-4 for Klug and 5-6 for Sig)
Klug used to be really clingy when he was little because of good old abandonment issues. He isn’t all that clingy now but will occasionally be during especially bad mental breakdowns. (he also still has abandonment issues, that never left)
Amitie once experienced this first hand when checking to see if Klug was okay after he had an extremely bad day at school. She was a (not really) unwilling shoulder to cry on (aka she would have offered to be a shoulder to cry on anyway.)
Klug then denied any of this happened once he was in a better mood.
Strange Klug sometimes reads books in a weird position, such as hanging off of Klug’s bed.
If all of the Primp students were to play a video game together where death is a thing that can happen, Klug will always in some way shape or form die first. No. Matter. What.
Sig and Klug are the only ones who can hear the Crimson Spirit when it’s in the Tome of Sealing
Sig can hear it because of their connection.
Klug was only able to hear it after the whole possession incident in the Arca Ruins during Fever 2.
Sig and Strange Klug have a sibling-like relationship. Obviously the two aren't actually siblings but they give off the vibes of two siblings who you can’t tell whether they hate each other or care about each other.
If the Crimson Spirit were to ever fall asleep while possessing Klug, it would use its cape as a blanket.