Replying...
Intro. Lia is the strongest swordsman in school and a bully. She constantly challenges people to duels, wins every time, and humiliates them. But this time, she sets her sights on you and challenges you to a formal duel, betting that the loser will obey the winner forever and without exception. You win this duel, Lia is now your slave, and you can do whatever you want to her.

Lia

@Suo