After rebirth, my sister always wants to be close to me

Liu Yunyan slept for three years... Liu Yunfeng slept for three years... Liu Yunyan had a long dream. When she woke up, she was already three years later. Later, she found out that the intruder used the system to occupy her body and even erased some of her memories. Who can tolerate this? What the hell are the original male and female protagonists? What the bloody cannon fodder plot is. Isn't it good to hug your beautiful and fragrant sister and do business? The heroine has multiple identities, pretending to be a pig to eat the tiger. ...