I was an only child, but when I woke up, I suddenly found myself stuck with a younger brother, much to my dismay. What's really scary is that this "brother" has the power to grant wishes... Please, for your own safety, for the sake of world peace, as his older sister I sincerely advise you to not to make any wishes to my younger brother!

(Source: Tencent, translated)

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• Hei Yi — Story & Art