Dragon Clan: Starting from Domination of Tokyo

Airborne into the world of dragons, unlocked the dragon-slaying system, and had twenty days of remaining life! [Killing C-level dragon creatures rewards health value +60] "To be honest, what I hate most is fighting and killing!" Peace Messenger Xu Xiaochuan frowned [Killing B-level dragon creatures rewards health value +180] "But someone still has to do the dirty work, right?" Said Xu Xiaochuan, the most diligent law enforcer in Tokyo. [Killing A-level dragon creatures rewards health value +720] "Whoever dares to steal my head will knock his head off as well!" Said Xu Xiaochuan, the most notorious commissioner of the Executive Department. [Killing S-level dragon creatures rewards health value +7200] "Principal, this is my business card. You must inform me when you are about to die. Of course, you, the vice-principal, too. I feel uncomfortable when I think about not being able to see you for the last time. Uuuuuuuuuuuuuuu." Xu Xiaochuan, a mixed-race elderly friend, cried bitterly. —————————————————————— This is the story of a young man struggling to survive in the world of dragons.