Meng Zhiyin had enjoyed an easy life for fifteen years, until her parents discovered just before the start of high school that she wasn't their biological daughter. She panicked a little, but kept a fairly steady face, since her parents and older brother had always doted on her.
Once they learned that their biological daughter had been lost to them, and discovered that her father had died and her mother was frail, making her the textbook case of a beautiful, strong, yet tragic girl, they hurried to bring her home. Meng Qinghe looked a lot like her mother, a classic Eastern beauty with sweet little dimples when she smiled. But the moment she opened her mouth, things took a very strange turn.
Meng Zhiyin offered to give up her bedroom, but Meng Qinghe refused. After choosing the guest room as her bedroom, she also claimed the storage room, saying she was going to give it a "pain room makeover."
When their father had a board meeting, she volunteered to order afternoon tea. What arrived was milk tea delivery, with garish packaging. Their aunts and uncles sucked up pearls through their straws, while Meng Qinghe insisted on taking the washed cups away, saying something about "collaborations being precious."
When their mother offered to take Meng Qinghe to an auction, she waved her off and shyly asked if she could have the cash instead. She'd had her eye on an auction listing on Xianyu for ages. In the end, she spent five figures on a tiny, round tin badge.
Their older brother, Meng Zhouxing, didn't escape either. Meng Qinghe dragged him into a game, and golden light flashed. She shouted, "Mystical luck, turn my bad luck around!" Then the very project her brother had been about to pursue got snatched away by someone else. Meng Qinghe said that was what happened when your European luck got sucked away.
Her hobbies were all bizarre. Fortunately, the sisters got along well, though it would be even better if Meng Zhiyin didn't have to keep accompanying her to joint-brand restaurants serving food of questionable flavor. That's what Meng Zhiyin thought, until Meng Qinghe got a little too into character while cosplaying, and the other person kissed her.
Meng Qinghe beamed. "A younger sister is meant to become a wife!"
The real heiress Meng Qinghe and the fake heiress Meng Zhiyin star in a warm story about healing each other and growing up together, with the added bonus of fulfilling this lifelong otaku's dream of getting rich overnight (not really).
Theme: The otaku world saves the world!