3 : Welcome To Maken-ki -

This is the specialized club/security force Takeru joins, which acts as the school's primary defense against internal and external threats.

She is established as the "shield." Her protective nature toward Takeru is rooted in a childhood promise, but her combat prowess shows she is the top-tier power of the group. 3 : Welcome to Maken-ki

This episode shifts the focus from slapstick comedy to the technical side of the Tenbi Academy. We learn that "Maken" are not just weapons, but manifestations of a student's internal "Element." This is the specialized club/security force Takeru joins,