[Easygoing transmigration + a little romance + family-friendly + no major villains + both leads are devoted to each other + the brother and sister are both adored by everyone]
A pair of goofy siblings get a [Book Merchant] System and a [Top Scholar] System, then transmigrate to an ancient county town to open a bookstore and pursue success in the imperial examinations. They make it big!
The older sister builds her bookstore business by selling picture books and eventually becomes famous throughout the land, while her younger brother takes the imperial examinations and comes out on top. (They gradually build up their success in the early chapters.)
The whole family moves to the capital, where they crush all the talented young men and women and reach the pinnacle of life. They sell picture books, publish illustrated magazines and serialized wish-fulfillment stories, build libraries and parks... Their remote little county town is transformed into a Journey to the West theme park, and their book auctions attract countless adoring fans. The “transfer student” younger brother outshines a child prodigy with a photographic memory, only for them to discover after he arrives in the capital that he's the legitimate grandson of a Minister of State who was lost to the family...
However, their Systems sometimes “trip them up”...
For example:
Younger brother Qi Ming: Sis! We're doomed! I can't feel my fingers again! Does that mean your books still haven't sold?
Older sister Qi Yun: That's what you get for not studying properly a few days ago. It made my hair grow like crazy, so I can't even go out to sell books...
2:
After Qi Ming draws countless eyes in the capital, he meets the daughter of a Minister of State and accidentally reveals a hand punished by the System, with two fingers turned transparent.
The peach-blossom-faced young lady is thunderstruck, tears welling in her eyes: My beloved is disabled...
Qi Ming: Don't worry, I'm only disabled sometimes.
Please note: An enormous number of men fall for Qi Yun throughout the story, but the heroine doesn't lead anyone on and turns them all down equally. An enormous number of women fall for Qi Ming, mostly later on, since he's too young in the early chapters. If that bothers you, don't read.
