Souma

It’s revealed that she and Kendappa-ou are in love with each other.

In final battle Kendappa-ou fought with Souma. Kendappa-ou believed that Souma could not win against Taishaku-ten so she rather kill Souma herself. After mortally wounding Souma, Kendappa-ou committed suicide. Souma wanted to give her blood to Kendappa-ou so she would not die, but Taishaku-ten stopped her from doing so.