In my RPs with a friend, We have a the cast of Undertale live in a town with in the Lunar Kingdom, one day I decide that Chara would be reincarnated as a Kobold on the planet Soma which is in another dimension. Chara dis get be with their monster family. They are not evil anymore thanks to the events that lead to them getting reincarnated. It was a second life contest in the afterlife realm the entry fee was some part of their personality.

Chara © Toby Fox

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