Starting with Dual Systems, I Am Actually a System Hunter

After traveling to this world where system abilities are common, Lin Lang realized that systems are also divided into categories. For example, the ability user of the [Shenhao System] that he just subdued was of the materialization type, and the ability user of the [Rogue System] that he dealt with last time was of the special type... As the future heir of today's number one assassin family, his duty is to hunt these "unruly" system ability users. The industry calls his profession a "demon hunter"! These system ability users also have a nice name - "Host"! What Lin Lang didn't know was that the world he traveled to was in an era of overflowing systems and an era of end of systems! This book is also called "Enemy of the System", "System Hunter"... Of course, if you are like me and a loyal fan of "Hunter", you can also call this book "The Legend of Killua"!