Majiri Agakura

As the eldest daughter and head of the Agakura household, she leads a family of assassins composed entirely of members she personally took in. Her true identity is none other than Ridi Marakuga, a vampire of legendary status hailing from another world, who has spent over a century living on Earth beneath the guise of an ordinary high school student. She stands at the absolute pinnacle of combat ability within the series. Her personality oscillates between an imposing, cold authority and a teasing, whimsical playfulness. She holds an almost obsessive attachment to the bonds of family, and is known to casually invite those who catch her interest to join her household on a whim.