The Emperor's Adopted Son Is Ungrateful? Then Change to an Adopted Son

[Brainless cool article + time travel + system, please clear your mind before reading. Su Wenyuan seems to be destined to be the heroine but is actually destined to be cannon fodder. She has lived through three lives with her memory, (at the beginning of the heroine), but none of them ended well. (Cannon fodder ending) In the first life, when I was eating melon, a vase fell from the sky to cool me down. In the second life, she started well and ended up becoming the Queen Mother but was killed by her adopted son with a plate of poisonous cakes. Fortunately, he finally saw someone helping him take revenge, and his resentment became less. In the third life, in the world of cultivation where strength is respected, she joined the sect as the Three Spiritual Roots. She thought there would be a good result, but she died again because she overheard something she shouldn't have... She thought it would end there, but unexpectedly she returned to her second life before becoming the Queen Mother. Is there a system that binds her? She immediately made the system her own. The adopted son wants to poison her? She poisoned him back. And kicked this adopted son and replaced him with another adopted son. It is said that the adopted son in the second life learned that she was dead, and finally rebelled and became emperor to avenge her. ———— In a harem story, the heroine will not fall in love with the emperor, and the male protagonist will not exclusively dote on the heroine at first, but later on he will be the only one doting on her. This is a story about returning to the past to take revenge and raise a child, and to upgrade. The male protagonist only noticed the female protagonist later.