[Sorry, this book may be delayed a little. Western fantasy is my absolute favorite, and I still need to write more to hone my skills and create a better story in the genre. So I'll be putting this one off for now.]
Jiang Lai.
The top research talent of the late 21st century, whose field is the possibility of time travel.
After volunteering to board the time-travel device she had built,
she accidentally transmigrates to Atlantis, a place that vanished from Earth.
She becomes Cecilia Jin, a young noblewoman from a fallen family.
The magical world is a tremendous shock to her,
but her useless father is bent on becoming a painter, while her loving brother dreams of becoming a knight.
Young Cecilia sighs and takes on the burden of supporting the family with her small shoulders.
Using her skills as a high-tech research talent, she turns the family's worthless antiques into treasures and opens an adventuring-goods shop with the best value in the city.
Just as life starts getting better, one day she hears a wand talking...
Straight-laced engineering girl VS tsundere humanities guy
Carlos (offering it with heartfelt devotion): Darling, this is the only treant heart in the world. It's yours.
Cecilia (looking disgusted): Emmmm, does it smell a little fishy?
Humanities guy, deceased.
Cecilia (proudly thumping her chest): These are the world's one-of-a-kind, nine-sword, nine-heart-cut diamonds I made for you!
Carlos (eyes sparkling): Darling, you're so romantic!
Engineering girl, WIN
Theme: A wild imagination