Seena, Kanon

椎名夏音

She is a student council member, just like the other characters. Shortly after Kureha and Souma, she and Kiriya are transported to End Earth. Upon arriving, Seena and Kiriya establish an independent mercenary group known as the Luminous Knights, with Seena serving as the leader. She allows Kiriya to use her heart as a sword so that he can fight, specifically with the Gun Sword Blade Cannon.