America: Start Killing the Dragon by Fighting Gundam

[You killed a Dragonborn. From the corpse, you extract the ability: *Dragon Flame*. [You have pieced together the body of a believer of an ancient god. From the corpse, you extract the ability: *Babber*. [Your one night of passion with the shapeshifter is really shameless and contrary to family ethics. "Shut up, you stinking system." ... Liu Feng is an international student in the United States, but his life is not peaceful. The mentor is dead and wanted by the police. The system always thinks that this is a dark dungeon and urges him to become a brave man and slay the evil dragon all day long. With his profession as "corpse collector", Liu Feng can extract abilities from corpses. He relied on various abilities to survive in the United States. But one day, he really saw the evil dragon... "It's not the system, are you serious??" (DND+American Western Fantasy, no harem.)