A story about a girl and her friends and a mystical world they discover. About 7 chapters. Stay tuned.
Alongside those swaps, there are some that require more elaboration. The protagonist, Zael, replaces Kris as the Fountain-Sealer. They are not Asriel, since Asriel swaps with Chara. Instead they are an original character. Lancer and Berdly also swap, but BOTH end up remaining as objects, Lancer becoming Pester and Berdly becoming Heron. Toriel and Asgore swap, but they are humans since they are the parents of Chara, this is due to the human-monster war in a hypothetical Undertale version to be a war between the living and the damned. The mortals against demons in layman's terms.
The GREEN SUN replaces the TITAN'S EYE. Its significance will be revealed at a later date.
The ECLIPSE replaces the DELTA RUNE. Its significance will be revealed at a later date.