Everyone laughs at me for being an F-class useless guide, useless because I am allergic to my mental body. But Lu Lin, the most dangerous S-class sentry in the Federation, only listened to me and only wanted to stay by my side when his Black Dragon Abyss went berserk. I used a special cleansing mental force field to stabilize the out-of-control black dragon and heal Lu Lin's mental trauma. From a waste that everyone despised, I became a special being who can control the strongest black dragon.
