Drunk for Her

An introverted girl has had enough of the isolation inadvertently formed by her solitary nature. Things changed when she discovers that she has the ability to transverse across the fabric of our universe into the dimensions of multiple storylines. Not only do these storylines leave her with invaluable lessons - they also impart a portion of their power - if she is deserving of it. The time has come for Zhao Youyue to change her fate. Never again, will she remain as a Side-Character!

EndlessFantasy Translation 

Shift! The Side-Character Heroine

Regardless of the outcome, Olivia got to befriend this Witcher. He looked to be in his mid-thirties, but was chronologically over 100 years old.

That's right, because she had officially met up with Geralt, the system's "Character Information File" updated itself accordingly, and she got to learn about Geralt's past.

Geralt was thought to be the son of the warrior Korin and the sorceress Visenna. Upon birth, Geralt had been abandoned by his mother at Kaer Morhen, a castle that belonged to a witcher.

This was where his teacher, Vesemir found him. From thereon, he accepted the Trial of the Grass and the devilish training of being a witcher.

The Trial of Grass made him a superhuman by giving him immerse strength and mental capabilities that ranged from superhuman speed and strength to insane healing abilities, but as a side effect, he lost his skin color and fertility.

Release My Sister!