Yes, yes I know, six years too late. In this book it was Asriel's idea to eat the buttercups, he died, Asgore still declared war on humanity and Toriel still left, this time taking Chara with her, who is 18 like yourself and Frisk due to agelessness...
I'll be taking inspiration from Glitchtale, when Toriel helps the children awaken their latent magic, something happens. This doesn't happen with Y/N, he found out how and managed to summon a flail like weapon that can change into a whip like a cat o' nine tails and a bunch of needles.
The flail:
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I edited the image slightly, it's purple because perseverance is purple
The cat o' nine tails:
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Relatives: mother (dead) father (dead) brother (missing) cousin (orphaned and adopted), dog (sadly, dead)
Love interests:
Frisk:
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Yes I know, creepy, she is OBSESSED with you. She's never left your side. Ignore the knife and blood if you wish
Chara:
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Again creepy, like Frisk, Chara is obsessed with you to a whole new level. If someone she doesn't like (being, nearly everyone) even looks at you, she gets really defensive. Her obsessive nature evolves in waterfall through hotland
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Replace Fisk with yourself. This is what I meant by defensive, she will kill. Unbeknownst to you, when you sleep, Frisk, and later Chara look at you for five hours straight like this:
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Additions: Hobbies: playing the piano, sleeping, joking about communism, joking with Frisk/Sans, cooking, drinking coffee/tea, biology, astrology, chemistry, mathematics, Shakespeare, classical music, orchestral remixes, sparring with Undyne.
Likes: Chara and Frisk at their happiest, Toriel's cinnamon butterscotch pie, Grillby's, Muffet's spider pastries, made by spiders, for spiders, from spiders. Sans doing what he does best.
Dislikes: that little flower bastard, seeing Frisk and Chara sad, having to fight back, his innate and abundant psychopathic bloodlust, the river person's 'tralalala's' Toriel calling him a child, being called a child.
