Help! on the First Day of Employment, I Turned into a Child

[Warning: Our store is only open from sunset to sunrise. Currency is only available in memory and cannot be refunded or exchanged. Su Wan, the former chief bartender at Michelin restaurant, joined the "Twilight and Daytime" cafe because of a mysterious email. On her first day on the job, she was told that she was suffering from a rare disease - she was a 27-year-old royal sister during the day and automatically regressed into a 7-year-old girl at night. What's even weirder is that this store not only collects money, but also "eats" people. (This story is purely fictitious and is for entertainment purposes only)