Maximum: Wing King

Maximum: Wing King (「」) is the Maximum Technique of Eso's Rot Technique.

Description
Rot Technique Maximum: Wing King manipulates the user's blood and shapes it into large wasp-like wings. These wings can be used to create vector lines made of blood which can be used for offensive purposes or to increase the user's maneuverability. When the lines of blood connect with their target, they're instantly burned by the corrosive effects of the blood.

Eso
Eso used this technique to begin his fight with Yuji and Nobara. By activating it, Yuji was forced to flee and managed to move faster than Eso's lines of blood could. However, Eso was eventually able to catch up and hit Nobara from behind, badly burning her left arm.

Once both students had been hit by the dark blood, Eso was able to switch the Rot Technique from Maximum: Wing King to Decay. He cannot activate both techniques at the same time. Once forced to deactivate Decay, Eso immediately switched back to utilizing Wing King. He momentarily forced Yuji back before being injured by the sorcerer's Black Flash attack. While badly injured, Eso was unable to utilize Wing King.

Choso
Choso used the imitation of this technique in similar fashion against Kenjaku by utilizing his innate Blood Manipulation ability to control his blood. Instead of using this technique as a main attack, Choso utilized the vectors of blood to move compressed blood spheres around Kenjaku to perform a stronger attack from every direction. It was unexpected for Kenjaku, thus he had to use another ability than Cursed Spirit Manipulation.

Navigation
Technique Supérieure de Putréfaction, Souverain Ailé