I feel like I haven't been giving enough information about my tale (I'm new at this, so don't Yell at me yet). Underise has many differences to the original, for example: Chara does die and forms with Asriel, but when they get attacked and both die, Asriel is the one with the hatred of humanity and hates himself for stoping Chara from killing them. At first Chara does hate humanity still and even is angry at Asriel, but when Alphys does an experiment with the souls of kindness (green) and justice (yellow) Chara has a new goal, cure the underground!
Alphys was always making mistakes, but the experiment changed that. A soul has