After Three Years of Apprenticeship, I Was Shocked by the Outside World!

[Single heroine + empress + time travel + system + invincibility] Are you my wife or the empress? Lin Tian was stunned. Lin Tian traveled to the world of cultivation, practiced for three years and gained nothing, and unexpectedly obtained an invincible collection system. However, as soon as he came down from the mountain, he was asked by the empress to become a male concubine. Lin Tian decisively refused. Later, he discovered that the empress and his daughter-in-law were the same person. Lin Tian was instantly dumbfounded.