1. In a kinder world, Asriel does not die--in that world, Chara puts aside vengeance and instead helps to find the souls of dying humans (in hospitals, in quiet, forgotten places of the world where humans die alone and forgotten) until they can break the Barrier. In that world, monsters go free and humans adjust to these strange new creatures. In that world, the King and Queen do not know grief and their children are happy, in a way.
It is a hollow world.
2. In a more just world, the war between humans and monsters never happened at all. Monsters are free, their numbers equal to humans, and humans and monsters alike are afraid of the inevitable clash. Chara and Asriel never meet and both are poorer for it.
It is a doomed world.
3. In another world, you never chose this route. You chose kindness and empathy and charity and all who meet you are better for it in the end. It is a world of grief and love alike, a more full world.
But this is not that world and it's all your fault.
Undertale
It is a hollow world.
2. In a more just world, the war between humans and monsters never happened at all. Monsters are free, their numbers equal to humans, and humans and monsters alike are afraid of the inevitable clash. Chara and Asriel never meet and both are poorer for it.
It is a doomed world.
3. In another world, you never chose this route. You chose kindness and empathy and charity and all who meet you are better for it in the end. It is a world of grief and love alike, a more full world.
But this is not that world and it's all your fault.