A novel about time travel

This book seemed to be a transmigration novel written around 2009. On Earth, the leader of the Dragon Team self-destructed after being betrayed by his own woman and subordinates and transmigrated to another world. Reincarnated into the belly of an elf woman. This elf was the concubine of an emperor. In addition to the main character, she also had a pair of twin sisters. The elves had been pregnant for ten years before giving birth to the three little ones. The three little ones were hunted down as soon as they were born. It seemed that the protagonist had established an organization called Jianghu before he was even ten years old. The dishes in Jianghu were very unique and delicious. The protagonist's surname is Yang