After reading this, I think I understand precisely why those two statements are connected.
KENKA BANCHO OTOME: LOVE'S BATTLE ROYALE, based on the game created by Spike Chunsoft, with story & art by Chie Shimada. First published in 2015 and first published in North America in 2018.
PLOT:
Hinako Nakayama was hoping that going to an all-girls' high school would let her put years of bullying at the orphanage behind her and make some friends in the process. On her way to her first day, she's sidelined by her long-lost twin brother Hikaru. He convinces her to pose as him and attend Shishiku Academy in his place. Once she gets there, Hinako learns the truth behind the ruse: Shishiku is an all-boys' school full of deliquents, where student rankings are settled with fists instead of tests. Hinako manages to win over some of the baddest boys with a potent combination of delicate looks and a powerful right hook, but can she keep her gender a secret forever?
