After Passing Through the Book, He Lived and Died with the Villain BOS.

[Two male protagonists + master and apprentice + a serious sand sculpture novel] Shuangqiang cool article/The master and apprentice are under the age/The high-minded and clever rebellious master Shou & the dark-bellied and gloomy rebellious villain disciple Gong A master is disrespectful and a disciple is rebellious. The two people combined have 800 tricks and 300 kilograms of rebellion, of which the apprentice has 149 kilograms and the master has 151 kilograms. Xian Chenyi passed through a novel and became the master of the male protagonist. After being reminded of the master-disciple task in the system, he accepted the villain BOSS as his apprentice and gave the villain the task of killing the male protagonist. However, the little villain, who was full of pride (crossed out), took the male protagonist under his wing. At this point, Xianchenyi did the opposite, but still inexplicably completed the task and became the master of the male protagonist. At the same time, when Xianchenyi picked up the knife and wanted to kill the little villain, he had already lived and died with the little villain - in a physical sense, the kind of living and dying together where one person died and the other could not survive. Ps. This is a story about a master and a disciple cheating each other, and falling in love while cheating each other. The main plot is a non-traditional cultivation and monster-fighting upgrade flow. Shou is basically equal to the ceiling of combat power and cannot be upgraded; the level of attack is a mystery, Doraemon-style attacks. The non-chief is reincarnated, with low combat power and many magic weapons. He does big things in a muffled voice, and digs a hole for Shou to jump from time to time.