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

Zhao Hao did not believe it for a second, not even when he was slightly drunk. His disbelief only doubled when he heard that she would be making her debut in mountain racing, which was said to be very technical. Even so, he trusted his sister enough to know that none of her tales were tall. She had a knack of concealing her potential until the last minute, before going off with a bang, scaring everyone else shitless.

Zhao Hao would never forget the day when she had gently giggled over his shoulder during one of his "League of Legends" playthrough, like a tinkling bell chime. In the end, she had taken his seat and played for a bit, obliterating the opponent's team in a one-sided battle.

This had left Zhao Hao in shock, but this was also why he gave her the benefit of the doubt and decided that she was just hiding her skills again.

Steady Driving