A phone transmigrates into a book and becomes human. Dazed and confused, she has no idea what to think or do. The phone even gets a name of her own: Qing Ming.
Qing Ming wants to return to reality and keep being a phone, but the System won't allow it. Instead, it orders her to go hand out candy.
The more she hands out, the stranger things get.
The gentle, jade-like eldest senior brother swears he'll always be Qing Ming's big brother and protect her forever.
The elegant, icy second senior sister decides to treat Qing Ming like a little sister and dote on her. No one is allowed to hurt her.
The arrogant, overimaginative third senior brother thinks his junior sister is the best forever and waves a banner for her.
Even the usually aloof Crown Prince of the Demon Clan wants to protect Qing Ming, and has fallen for her.
Ahem. The three senior siblings frown. If you want to marry their junior sister, you'll have to get past them first.
But by now, Qing Ming has already taken her delicious candy recipes and gone off to save the world!
Theme: Work hard now so you can slack off sooner