Containing Monsters? Please Call Me the 749 God of Killing!

Li Haotian travels through a different world. But I discovered that there are countless weird things lurking in the darkness of this world! At the moment of crisis, Li Haotian awakened the [Killing God System] and joined the 749 Bureau specifically to deal with these monsters. The main purpose of Bureau 749 is containment and research, but Li Haotian's system does the opposite: Only by killing monsters can you become stronger! ... While his teammates were busy setting up the containment device, Li Haotian drew his sword and struck! When the professor pointed at the thousand-year-old zombie and said "it must be captured alive for study," Li Haotian shot him in the head! When international organizations roared, "This is a precious sample," Li Haotian burned it to ashes! ... Everyone called Li Haotian a madman, a butcher, and an extremist. Until one day, the contained "harmless" monsters went berserk and devoured most of the base. Li Haotian walked through the ruins holding a bloody knife. With a sneer on his face: "Now, does anyone still think that containment is right?"