Shadow milk cookie. au

After a long time, and due to being the leader of the Ancestrals, his souljam (his soul or something related to his powers) began to corrupt and crack until it finally gave way, turning him "evil." He became the leader of the Beasts (former Ancestrals who had also been corrupted) alongside Shadow Milk, as they were the two most powerful. Shadow Milk already wanted to do wicked things or fight the Ancestrals along with Dark Vanilla (let's call him that since I'm not sure of the name), but now he just insulted him and told him to leave him alone, spending his time reading, walking through the castle built by Shadow Milk's slaves and servants, and sleeping. Shadow Milk, however, did not give up and vowed to make him accompany him, no matter what happened.

That same day, Dark Vanilla was walking peacefully toward the library, having just woken up from a nap, followed by Shadow Milk's two simps who were like his children. Shadow Milk appeared from the shadows, his magic floating around Dark Vanilla.

"Ohh~ little Dark Vanilla, when are you going to agree to join me in one of my plans?"

Shadow Milk said, unable to stop himself from adding, "Ohh, you are so, so, so silly, little Vanilla," speaking in an amused tone.