Also known as: The Days After I Transmigrated to Teyvat and Made Everyone Play as Original Monsters
Yu Yiren, a devoted Pokemon fan, transmigrated.
It happened because a System promised to take her to the paradise of her dreams, where she would meet all sorts of adorable companions with wondrous powers, travel with them, and experience the customs of different lands.
But Yu Yiren got a beginner System, and beginners always cause a lot of trouble. This System was no exception. It got the address wrong and sent Yu Yiren to the continent of Teyvat.
Yu Yiren: "Didn't you say there'd be adorable little spirits waiting for me? Where are they?"
The System guiltily looked away. "Slimes are adorable too!"
She was already here, and there were no refunds.
After a friendly conversation with the System (and a threat to file a complaint), Yu Yiren successfully received compensation and began her adventure across Teyvat.
What's the fun in being a trainer all by yourself? If you're going to do it, get everyone to become a trainer.
For instance, she found a monster with Electro powers for Mondstadt's Spark Knight. From then on, the smell of grilled fish often drifted around Cider Lake and Starfell Lake...
She also recommended a monster with healing abilities to an adventuring party leader who was prone to getting hurt; found a suitable battle monster for an investigator without a Vision; and got a monster suited to farming for an ordinary villager who loved working the land...
Yu Yiren founded the Original Monster Trainers Association, promoted the idea of being a trainer, and held original monster tournaments... The presence of original monster trainers gradually changed the lives of the people of Teyvat. Everything was for a better tomorrow.
Theater One:
A round, plump Hydro Slime emerged from the bushes and stared wide-eyed at Yu Yiren.
A wild slime appeared! Go, Trainer!
Yu Yiren defeated it with her bare hands.
Ding-dong! Congratulations, player Yu Yiren, on capturing your first original monster: a Hydro Slime.
Achievement unlocked: [Your First Companion on the Journey]
Theater Two:
Not long after arriving in Teyvat, Yu Yiren met a mysterious blond traveler who gave her guidance and helped her in many ways.
She asked the traveler for their name. The blond traveler fell silent for a long time, did not answer, and then quietly left.
So Yu Yiren decided to call the blond traveler this: kind █ █ little orange cat.
Theater Three:
"You over there, bard! Call your Stormterror back. This is a Little Cup tournament. Are you trying to scare the rookie trainers back to Mondstadt?"
Yu Yiren angrily pointed at the oversize Dvalin and shouted.
"And you, Consultant, get that round dragon off the field." Yu Yiren threatened him fiercely. "If my newly built arena gets damaged, I'll put the bill on the Wangsheng Funeral Parlor's tab."
Yu Yiren earnestly tried to persuade the next person. "General, yokai who can take human form can't compete as partners... Even if she turns back into a pink fox, she still can't compete!"
"Lesser Lord Kusanali, I'll leave the match commentary to you."
"Superstar, the Glorious Challenge isn't today!"
"Ms. Giyangoz, you're the contestant's coach. You really can't compete..."
Reader's notes:
(1) The protagonist is pretty strong. This isn't a growth story, and she has a major cheat ability.
(2) The protagonist doesn't know the plot and starts out with a player's mindset.
(3) Anything that doesn't match the original is an author-created detail.
(4) Everyone is friends, except for the romantic pairing.
(5) The cover shows the protagonist's character design.
Core message: Every life will encounter other lives and create something new.