Reincarnation of the Empress: My Brother Has the Appearance of a Great Emperor

My name is Su Yun, I am a transmigrator, and I have acquired a system that makes me stronger when I am a mortal.
Carrying water, chopping wood, growing flowers on Qingxuan Peak, working at sunrise and resting at sunset, they all thought I was a little monk with no ambition.
I thought it would continue like this until one day, following the will of the beautiful master, let me take her an apprentice this year.
So I chose a very beautiful looking scumbag junior sister.
...
My name is Liu Jiu'er, I am a reincarnator who was killed by the enemy and reincarnated from the upper realm to the lower realm.
Before reincarnation, I was a quasi-emperor, and after reincarnation, I must break through to the legendary emperor level.
However, the secret of reincarnation cannot be known, so I decided to find a small sect for decades.