Dragon Type Infected Person

I was once the top hunter in the urban jungle, wearing a suit and leather shoes, with a data blade and an annual salary of one million. Until I discovered I was the prey. The thirst for flesh burns the mind day and night. I used all scientific methods to imprison myself in a cage of low temperature and logic, playing the role of a "normal" elite. Seven months ago, the brother who pushed me into the abyss returned, devoured my parents, and planted disaster in my body. Seven months later, an iron-fisted organization called "Watchmen" came to my door and locked a restraining collar around my throat. They gave me two choices: put on a driver called "Reins" and become the sharpest and most dangerous knife in their hands, clearing the city of monsters; Or it may be "harmlessly disposed" on the spot, like a piece of useless diseased tissue. I choose to live. Even if you have to use your monster body to hunt other monsters; Even if every time you activate the "reins", you are wrestling with the dragon that is devouring you; Even if the dark truth I pursue, my only blood relative stands at the end. Now, they look to me, a chained dragon, to suppress the entire out-of-control abyss. But they may have forgotten that even the strongest chains will one day be broken.