Genshin Impact: Sister, Don't Be Like This

[Single female protagonist] [System] [Slow pace] [Teyvat only] As for the system, it will appear in the mid-term Even earlier in the Year of the Burial Fire, Teyvat experienced unexpected changes. There was a special type of people who mastered a magical and powerful rune... They called this magical rune the "Holy Rune"... And later generations also called them "Pilgrims"... I don't know how many years have passed, but the different Teyvat once again faced unexpected changes. Three people from outside the world descended on this continent full of mysteries... One of them seemed to be a variable beyond the variables. Bai Lin woke up on this familiar yet unfamiliar beach. He thought he could come to Teyvat to fish comfortably and enjoy himself. He never imagined that this world was deeply connected to him... During the trip, he paired up with a traveler who also came from the outer world and explored this different Teyvat...