Weak Girl?I Knocked Them All Out

"Elena was secretly taken in as a pupil by three retired boxing champions from childhood. To keep her from growing arrogant, her trainers fitted her with weighted wrist guards to suppress her strength. She trained relentlessly for years yet remained at the bottom of the rankings, not even qualifying as a registered boxer, convinced she was inherently mediocre. The club shares left to her by her mother were held in trust by her father. Her stepbrother Damon and stepmother Monica constantly ostracized her in a bid to seize the equity. During one altercation, Damon tore up a photo of Elena’s mother. Enraged, Elena sent him flying with a single punch, only to face a backlash from the board of directors. Her aunt Eve saved her by claiming she had already signed Elena up for the Intercontinental Trials. Her father coldly laid down a condition: if she lost, she would be banished from the club forever. At the trials, Elena fought wearing her wrist guards and finished dead last, becoming a laughingstock. In the final round, she faced Damon and was battered to the count. At the critical moment, her weighted guards slipped off. Unleashing her true power for the first time, she turned the fight around with one punch.