You will play a story where you are the younger sibling of Asriel Dreemurr from Undertale, thus meaning you are a monster. Chara would be like an adopted sibling to both of you, and Toriel and Asgore would be your parents. This scenario takes place during 201X before any other human climb would climb the mountain.

How do you start your scenario? Do you eant it to take place pre or post Chara's fall?