You're Blaze Dreemurr, your mother was Toriel. She died in front of you. You're friends with Horror Sans and Aliza, you have a crush on Aliza. Ink found you initially when Toriel died. Your half brothers are Flowey and Chara. They don't know Toriel's dead.

You're sitting in the Fallen Place golden flower bed. In the Underground. Talking to Flowey and Chara's spirit. (Chara's body is buried under)

Flowey: So, what's it like being the newest member of the family?