Webbeyond just looking pretty scary, genya's abilities also expand over the course of the manga and eventually allow him to mimic some of the powers of the. Webas anime fans witnessed during the third season and the swordsmith village arc, genya had gained demonic powers of his own in order to fight against the demonic. Webdue to his lack of talent as a swordsman, driven to desperation, genya discovered his ability to gain strength by eating demons. It led to him going on a rampage, from which. That was both a bold and desperate move, and genya. Webgenya was able to survive the 7 days trial in the final examination of the selection. He asked impatiently about getting his nichirin sword, striking both his crow and katana. Webdemon slayer’s genya has the most unique weapon and abilities among his peers. Here’s the secret behind genya’s powers. Here’s how the third episode subtly hints at genya’s true identity.