The Empress's No.1 Lackey - Chapter 460 - 375, may I ask the Lord, how to break the situation? (Request for guaranteed monthly ticket)

A 13-year-old deaf teenager living in the 21st century suddenly found himself as a young boy in Japan during the early 1900s. With two World Wars, two nuclear bombs, Hitler and many other disasters awaiting his future, he thought things couldn't get worse.Except it did.He found out later on that he had actually reincarnated into the world of Demon Slayer where man-eating demons ruled the night. He thought things couldn't get worse.Except it did.But hey! At least he had unparalleled talent, incredibly special eyes and future knowledge.How will the story of Demon Slayer change with the addition of this unique character? Will so many still die if the Hashiras had one more pillar in the final battle?Or will the story end on a much happier note?

An ordinary medical student suddenly got the blessing of the system and could directly see the patient’s health! Since then, treating illnesses and saving lives has become commonplace, and he has also become a legend in the medical field.

- Description from novelbuddy

In the twenty-seventh year of Hong Guang, the allied forces of seven nations invaded the Great Blue Dynasty.Rifled muskets, mortars, and armored vehicles combined into a steel tide, were ultimately shattered by the Great Blue's armored cavalry.Muscle, magic, firearms, cannons... the new and the old powers continuously collided.In an era of great strife, Li Fei, with the help of a Ten Thousand Blood Bead, gradually became an existence akin to a BOSS:'Is this the extent of your damage? You haven't even taken off one-thousandth of my health.''You don't think this is enough to kill me, do you?''Don't rush, the second phase is up next!'......