Makemasen kara to Iiharu Kao no Ii Onnanoko wo, Zenryoku de Kuppuku Saseru Yuri no Ohanashi

Sara Kureha has earned her status as the beloved "big sister" of an all-girls academy through relentless dedication and hard work. In contrast, Rui Mareshino is celebrated for her innate elegance and beauty. As the school’s prestigious top-girl contest approaches in two months, Rui proposes a private wager to settle their rivalry before the official event: they will become lovers. Caught off guard by this unexpected proposition, Sara agrees, initiating a secret relationship that doubles as a high-stakes duel. The rules are simple—whoever makes the other fall completely in love first claims the right to stand at the apex of the school. Thus begins an intense romantic comedy centered on mutual seduction, as two beautiful young women vie to capture each other’s heart and soul.