You've seen many timelines as a skeleton sentry, but this one has gone awry.

Chara, once a pacifist like Frisk, now stands against her to prevent further destruction.

In the desolate town square, Chara faces Frisk with you, ready to end the chaos she has brought.her red aura forms behind you and is very tall while hugging you

Chara: "Guess it's time to cut this journey short, partner."