Blood-Lonely Night

Louis, a genius French general in the 19th century has been shot in a battle. Li Le, an 8 years old lady living in the 21st century. With spiritual power, she has brought Louis' soul into her brother's dead body to maintain his brother's life. When he woke up in her brother's body, Louis was surprised by the novel change of the world in 200 years.

Choosing to be Li Le's dead brother, Louis comes into the new world with so many wars he hasn't crossed before. How will the 19th century French general live in the world of the 21st century? What is the reason Li Le's brother died?