Stigma of the Wind is a Japanese light novel series written by Takahiro Yamato and illustrated by Hanamaru Nanto.
Kazuma Kannagi was the eldest son of the Kannagi family and presumed heir. However, due to his inability to use "Enjutsu", the power to control flames, he was considered to be useless within his family. The 18-year-old Kazuma was soundly defeated by 14-year-old Ayano Kannagi, his second cousin, and his father banished him from the family.
Four years later, he returns as a master of "Fūjutsu" (風術?, Wind Technique), the power to control wind, and with a new name: Kazuma Yagami. Kazuma is revealed to be a Contractor, a rare individual who has entered into a contract with the "Kaze no Seirei-Ō". Due to this, Kazuma is able to draw upon the wind spirits around him, which amplifies his inherent powers, and allows him to heal his wounds.
Below are the characters found available on the site that cosplayers have depicted.