Maken-Ki!

Takeru Ooyama, a young man with a rather perverted mindset, finds himself enrolled in a prestigious school where combat and magic training are a norm. Unbeknownst to him, the school's curriculum involves the study and application of magical abilities, known as Maken, which are wielded through various items or weapons. Upon his first day, Takeru reunites with childhood friend Amaya Haruko, meets Inaho Kushiya, a girl who claims to be his fiancée, and encounters Himegami Kodama, a blonde intent on killing him. As he navigates his new surroundings, Takeru learns that many of his peers possess unique Maken, with which they engage in duels to demonstrate their magical prowess. However, Takeru discovers that he is Maken-less, leaving him uncertain about his place at the school and the prospect of participating in these intense magical competitions.