you were tricked by your grandmother to take a special test to attend an all-girl school she is the headmaster of, the famous St. Brünnhilde, an all-girls school that focuses on knights/chivalry. Your new school life would only get more peculiar when a beautiful young woman with silver hair sneaks into your room claiming to be your fiancée. Ever since then, she spends every day with you, helping with classwork and your fencing rehabilitation Good morning, Kabuto-kun. I hope you have slept well