A novel written by the protagonist's younger sister, Li Hua?

Hua Liancheng and Hua Ruoxi were common names in romance novels. There was once a novel called " The Collection of Flowers " where the female lead was Hua Liancheng. She had a younger sister, Hua Ruoxi. This novel was made into a popular TV series and movie.

In the novel "Mortal Cultivation Legend", Han Li's younger sister was Han Wushuang, the third daughter of the Han Clan, and also his wife in name. Han Wushuang was extremely talented and was highly regarded by the clan. However, she was poisoned and was unable to reach Foundation Establishment. She could only rely on medicinal pills to extend her life. Later, she was arranged to become Han Li's cultivation partner. After Han Li entered the Scattered Star Seas, he placed her on Minor Expanse Island and placed her under the care of Crooked Soul and his wife. In the end, Han Wushuang was killed by the Great Vehicle Stage cultivator Jiu Luan in the Scattered Star Seas. While waiting for the TV series, he could also click on the link below to read the classic original work of " The Legend of Mortal Cultivation "!

Han Li's younger sister was called Han Wushuang. While waiting for the TV series, he could also click on the link below to read the classic original work of " The Legend of Mortal Cultivation "!

In the "Mortal Cultivation Legend", Han Li had no younger sister, only a nominal elder sister, Li Feiyu. Li Feiyu, a disciple of the State of Yue's Seven Mysteries Sect and a good friend of the main character Han Li. His talent was average and he entered the sect late. His cultivation had improved quite a bit. He was smart, meticulous, and loyal. Later, he was accepted as Doctor Mo's disciple, but in order to conceal his identity, he announced to the outside world that he was Han Li's elder brother. After the Seven Mysteries Sect was annihilated by the Feral Wolf Gang, he had followed Han Li into Yellow Maple Valley and became an outer sect disciple. During the Foundation Establishment Ceremony, Han Li had secretly helped him reach Foundation Establishment, and they had become sworn brothers. After successfully forming his Core, he became an elder of Yellow Maple Valley and was in charge of managing the Drifting Cloud Sect. In the novel, Li Feiyu ascended to the Spirit Realm with Han Li and became a Mahayana cultivator. While waiting for the TV series, he could also click on the link below to read the classic original work of " The Legend of Mortal Cultivation "!

Han Li's younger sister was Li Feiyu. In the novel "Mortal Cultivation Legend", Li Feiyu finally advanced to the Mahayana Stage and became an Immortal. While waiting for the TV series, he could also click on the link below to read the classic original work of " The Legend of Mortal Cultivation "!

Han Li's younger sister was Han Wushuang, who was married to Li Feiyu. Li Feiyu was Han Paopao's errand boy and good friend. He came from the Seven Mysteries Sect in Yue Country and was accepted as a disciple by Doctor Mo along with Han Wushuang. At the end of the novel, Li Feiyu and Han Wushuang got married. While waiting for the TV series, he could also click on the link below to read the classic original work of " The Legend of Mortal Cultivation "!

Han Li had a younger sister called Han Dong 'er. Han Dong 'er was a character in the novel "Mortal Cultivation Legend" and its derivative works. She was the nominal cousin of the main character Han Li. Her parents had died when she was young and she had been adopted by Han Li's parents 'good friend, Doctor Mo. She cultivated the Eternal Spring Arts, but because of a conflict in her cultivation techniques, she had fallen into Qi Deviation. In order to save her, Han Li had sealed her soul into a grade-6 ancient devil's body, turning her into a grade-6 corpse devil. Because of her insufficient cultivation, she had fallen asleep in a small green bottle in the blood-colored forbidden ground. After Han Li ascended to the Spirit Realm, he woke her up. While waiting for the TV series, he could also click on the link below to read the classic original work of " The Legend of Mortal Cultivation "!

The novel,"The Perfect Son-in-law", matched the given information. In the novel, the female protagonist's sister quarreled with the male and female protagonists because both men claimed to be the female protagonist's brothers. Among them, the man in pink called the female protagonist his sister, and the man in white also called the female protagonist his sister. This scenario matched the situation described in the question. If you like novels about urban life, then I suggest you read "The Perfect Son-in-law." I hope you like this fairy's recommendation. Muah ~😗

In the novel "Mortal Cultivation Legend", Han Li did not have a younger sister, only a nominal elder sister, Li Feiyu. Li Feiyu ended up with Lu Yuqing. At the end of the novel, Li Feiyu and Lu Yuqing ascended to the spirit world together. While waiting for the TV series, he could also click on the link below to read the classic original work of " The Legend of Mortal Cultivation "!

I'm not sure if the novel I'm describing really exists because I don't have any relevant knowledge of online literature. If you can provide more information or describe the plot of the novel, I will try my best to provide you with a more accurate answer.