Sei Brunehilde Gakuen Shoujo Kishidan to Junpaku no Panty ~Kacchuu Ojou-sama no Zecchou Omorashi~

The protagonist is tricked by his grandmother into taking a special exam to attend school, unaware that she—the former headmistress—pulled strings to get him into the prestigious St. Brunehilde, an all-girls academy dedicated to knighthood. His new life takes a chaotic turn when he encounters transfer students, including a woman who claims to be his fiancée and sneaks into his room, and a princess whose overprotective knight accidentally runs him over with a carriage. Surrounded by beautiful knight heroines, he navigates a world of swordplay, comedy, and unexpected romance.