Gakuen no Hime Kouryaku Hajimetara Shuraba ni Natteta KenNewWhen I Tried to Conquer the School Princesses, It Turned Into Romantic Mayhem; 学園の姫攻略始めたら修羅場になってた件

Make Me a Princess! One day, Kanbara Yuuma finds himself in a desperate situation when his younger sister, Ayane, blackmails him with a certain cringe worthy secret from his past. Her demand? To secure her a spot among the Hime 6, the prestigious titles awarded only to the top six candidates in Himegasaki Academys famous general election. Determined to claim a throne of her own, Ayane forces Yuuma to use his weakness as leverage, making him conquer her rival princess candidates and clear the path to her victory. But winning over the schools most dazzling girls, who have the entire student body captivated, is no easy task, and Yuuma struggles at every turn Worse still, as he gets involved, he finds himself tangled in the increasingly complicated romantic entanglements of the princesses themselves! With egos laid bare and love and scheming colliding at full force, this is the most chaotic romantic comedy yet, and the madness begins here!