This familyship can be seen as an expansion to a family version of Charisk, where Chara and Frisk are portrayed as siblings. A less common alternate portrayal is having Kris be notably younger than Frisk and Chara, a scenario known as Reverse KFC. In fanart, Kris is often portrayed as the older sibling of Frisk and Chara, while the latter two are around the same age. Kris seems to be the Deltarune counterpart of both Frisk and Chara.įollowing the release of Deltarune, fanart of this trio started to be made as Kris had similar traits to both Frisk and Chara. The characters have not interacted as Kris only appears in Deltarune while Frisk and Chara appear in Undertale.