He He was born unlucky. Anyone who came into contact with her would suffer bad luck. Even the Bad Luck System managed to fulfill its dream of getting promoted and receiving a raise just by binding itself to her.
To repay He He for helping it, the Bad Luck System told her something before it left.
Its good friend, Fortune-Changing System No. 668, had ended its partnership with its previous Host and was looking for someone new. If He He wanted to change her unlucky nature, she could bind herself to No. 668.
So, with the Bad Luck System's help, it managed to lure No. 668 out and get it to bind with He He.
Using the Fortune-Changing System's ability to predict the future, a thief who had been planning to steal something was arrested by the police before he could make a move after crossing paths with He He.
A robber who had been planning to hold someone up was struck by a bicycle before he could rob anyone.
Watching her bad luck score dwindle day by day, He He realized that her luck was slowly starting to turn.
Bai An was a luck scorekeeper in the underworld, recording people's luck every day.
An accident made him He He's personal luck scorekeeper. So, as one incident after another unfolded, he began a long journey of keeping records.
Bonus scene:
He He: "Bai An, how much has my bad luck score gone down now?"
Thinking of what she'd done with a certain someone, Bai An said darkly, "I'm not telling you!"
He He pouted. "Fine, don't tell me!"
Born-unlucky, pitiful little girl x underworld luck scorekeeper
Note from 2020.3.17
Theme: Look at things with optimism.