A phone transmigrates into a book and becomes human. Dazed and confused, it has no idea what to think or do. The phone even has a name of its own: Qing Ming.
Qing Ming wants to return to reality and go back to being a phone, but the System refuses and tells her to hand out candy.
The more candy she hands out, the stranger things get.
The gentle, jade-like eldest senior brother vows to be Qing Ming's brother forever and protect her forever.
The elegant, icy second senior sister decides to dote on Qing Ming like a little sister, and won't let anyone hurt her.
The arrogant, overthinking third senior brother thinks his junior sister is always the best and proudly waves her banner.
Even the usually aloof Crown Prince of the Demon Tribe wants to protect Qing Ming, and has fallen for her.
Ahem. The three senior brothers and sisters 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 recipe and gone off to save the world!
Theme: Work hard so you can lie flat sooner