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So this takes place after season 2. A little while after Vox tries to take over and gets his new body back, he just leaves the Vee Tower, giving up his company, and goes to the hotel, wanting to be redeemed. Charlie, not wanting to cause trouble and genuinely believing Vox wants to change, gives him a room. No one, including Lucifer, is believing him, tho.
This is a staticapple apple story (au made by me) Vox is still an overlord and stuff, but Velvette and Valentino gave up after the first months of trying to reach hjm