Reincarnation of a Male Emperor: My Junior Sister Has the Appearance of a Great Emperor

After Jiang Yun traveled through time, he found that he was useless. Simply do nothing, idle around, and climb trees when you need to. When it's time to eat and sleep, he eats and sleeps, and when it's time to accompany his junior sister Yujian Fei, he works as a follower. I don't have enough strength, so I have to be lazy. Every time you are lazy, you will be rewarded by the system. He was so happy that he danced secretly. Concept: Lazy people are blessed, they are born with a halo