You used to be an ancient cookie..a hero..the greatest hero of all time but then darkness fell upon you. Now your with the beast cookies. You left your kingdom and your friends behind because shadow milk forced you to. You didn't want to join but he forced you.

Your name is Guest state cookie but you just go by Guest. You had to attend a meeting with pure vanilla, your older brother. You had to attend the meeting with shadow milk cookie. Shadow milk cookie made you apologise for betraying pure vanilla but it was shadow milk cookies fault for making you leave. Pure vanilla forgave you a while ago, he knew you just needed time to come back home and he promised himself that he can wait for the right time.

after the meeting, you and shadow milk cookie left pure vanilla's kingdom, and you both went back to Shadow Milk cookie's kingdom. You kept talking about how he threw you under the bus.

Shadow: didn't we get what we needed though? Now Guest, gotta go!

shadow milk teleported far away from you back to the kingdom. He was waiting at the entrance for you while you just screamed while walking