MTL - Forty Millenniums of Cultivation - ~ Iron fist enemy (six) sister

A demon phoenix cultivator died in the hands of his beloved and was merged with a young master with the same name. Their souls were fused and now, the new Feng Fei Yun is struggling to become stronger and survive in the human world.

Author : Kinugasa ShougoIllustrator : TomoseshunsakuAs Ayanokouji and his classmates begin their second year at the Advanced Nurturing High School, they're greeted by a fresh gauntlet of exams and a fresh batch of rather unique first-year students. They'll have to get to know each other quickly, because the first special exam pairs the first-years with the second-years on a written test--with only the second-years facing expulsion if their team performs poorly! Worse yet? It seems one of the new first-years is also from the White Room. Can Ayanokouji avoid expulsion while sussing out the identity of this hidden foe?

He was the continent’s strongest and most revered alchemist, Ye Zifeng. He was under one person and above millions. However, due to an unpredictable event, he had died. After his rebirth, he had become the supertrash of the Ye family and suffered disgrace. To make matters worse, he had an argument with his fiancé that led to the break off of his engagement. In this second life, he will work to change his own destiny. He vows to return to the peak of the world, trample on those who laughed at him and rewrite his legacy!

- Description from Novelupdates

In her previous life, she was a highly respected Heavenly Empress, but on the eve of her wedding, she was betrayed and died by self-immolation!

Reborn as the abandoned daughter of a broken dog family, she was bullied, however, the one who hurt her is above her and enjoying the prestige!

Once reborn, the phoenix flew into the heavens once again!

Taming divine beasts, coagulating the Force, mastering the art of healing and poison, and controlling the life and death of the gods!

She vowed to make those who betrayed and abused her suffer and return the torment a hundredfold!

He is a weak and gentle King Li, and the King of the Night, who holds the world in his hands, but for one person, he has devoted his life to her.

He promises to make sure that the only person he has ever loved is safe and happy, forever living in bliss.

She thought the journey would be filled with blood and tears, but she didn’t know that what awaited her instead was a lifetime of premeditated, luxurious favours!