Maken-Ki!

Takeru Ohyama, a teenage boy with a perverted streak, starts attending a new high school that recently transitioned to a co-educational setting and doesn't require entrance exams. He soon discovers that the school's students possess special items known as Maken, which enable them to use magical abilities in duels. Takeru must find a Maken that works for him while navigating the challenges of a new school and social relationships with the female students.