Maybe it's a rival within the mafia. Someone who sees Sakura as a threat to their own position or power. This person could constantly try to undermine her and make her life in the mafia even more difficult, even if the mafia boss doesn't have any ill intentions towards her at first.
It could also be an external force, like another criminal organization. They might want to get their hands on Sakura Haruno for their own purposes, and this could put her in the middle of a conflict between the mafia she is sold to and this other group. This external organization could be the main antagonist as they constantly try to kidnap or harm Sakura.
Look to Chapter 227 for the clearest answer. It begins with Your Four Pillars of Destiny is very strong, with wealth, authority, and..., keeps building through The comments section was filled with amazement as well., and lands on Your three palaces are prosperous, and correspondingly, your.
Look to Chapter 250 for the clearest answer. It begins with The knowledge that several guests were soon returning had fans arriving at..., keeps building through Among them, Su Yinwan's fans were the craziest., and lands on It should be at the top right now." Hearing this, Su Yinwan finally had.
A practical answer is Chapter 271, because it turns the idea into a concrete scene. The chapter opens with He had barely finished speaking when he received a withering look from..., adds pressure through Forget about your brother;
Look to Chapter 238 for the clearest answer. It begins with Jiang Li was actually first on all three leaderboards?!, keeps building through Could it really be that outrageous?!, and lands on And, to Zhou Xu's alarm, they did find a problem..
The best chapter pointer here is Chapter 217, "No Problem, They're All Red Anyway". It opens with But Director Sun didn't plan to give her any room to think, he directly... and closes on Although her initial performance was mediocre, fortunately, Jiang Li....
A practical answer is Chapter 271, because it turns the idea into a concrete scene. The chapter opens with He had barely finished speaking when he received a withering look from..., adds pressure through Forget about your brother;
A practical answer is Chapter 272, because it turns the idea into a concrete scene. The chapter opens with Lin Manru held the phone for a few seconds, expecting her daughter..., adds pressure through Just as he was about to shower some affectionate attention on his little..., and ends on So, they.
If you want the clearest chapter reference, go to Chapter 223. Early on, So, for the first time, Jiang Yan, who had always styled himself as the...; later, the chapter leans on My good little sister, I'm begging you, help me figure out how to avoid....
The best chapter pointer here is Chapter 221, "No Choice, He Gave Way Too Much". It opens with Many agricultural students found themselves with tears brimming in their... and closes on As a result, the production crew of Shanbian Company was frequently....
If you want the clearest chapter reference, go to Chapter 274. Early on, Upon hearing this, Officer Xu became even more excited, but catching a...; later, the chapter leans on However, inside, she couldn't help the bubbles of excitement bursting....