I am a Gao Fushuai Villain - Chapter 560:

She is the Crown Prince’s fiancee, but on the night of their wedding, an edict was made and she was given off to marry the crippled and paralyzed God of War.

After being killed, Xu Turan was given a system and got pulled into a certain thriller romance novel. There, she became the crucial female supporting role who seeks death. However, on the first day of transmigrating, her system was urgently recalled for repair as it was aging.

As their farewell was imminent, the system was worried about its new host so it repeatedly reminded Xu Turan: [Your role is to be a supporting character who is always seeking death. You do know what that means, right?]

Xu Turan recalled her rich experience of doing just that in her previous life and she replied affirmatively with absolute confidence.

So the system withdrew with its mind at ease.

After a few days, the system that had been away for repair finally returned. When it looked at the situation, it almost malfunctioned: [What are you doing?!!]

Xu Turan, who was busy arguing with the Evil God, answered without thinking, “I’m doing what you asked me to do – trying to find ways to die.]

System: […?!]

- Description from Novelupdates

The male student, Fukai Nagamasa, ignores his studies for college entrance exams in favor of following the path to chuunibyou. As he fainted during night cramming session before the exams, he realized that he was transported to a parallel world as a feudal lord in the Sengoku Era. Not to mention that suddenly, he was marrying the sixth Demon King, Oda Nobunaga’s little sister, the one who was purported to be an unrivaled beauty?

The good-natured Hou Yuxiao arrived in a martial arts world clearly divided between good and evil with a magical dual-colored lotus flower and became the Family Head of a small, insignificant Demon Path family in a county town, overseeing three younger brothers and a sister.The second brother was hot-tempered, the fourth brother was prone to fratricide, the youngest lived amongst the Demon Path but spent all day studying Confucian classics, and the only sister turned out to be a...Looking at the four problematic children, Hou Yuxiao fell into deep thought!It was a time of great contention,with Dynasties desperate for virtuous talents, seeking to stabilize their reign over The World,with sects dominating certain regions, aspiring to tower over all living beings,with families carrying on centuries of legacy, aiming to pursue happiness forever,with gangs reigning supreme, striving to build everlasting power,with academies resolving doubts and imparting knowledge, hoping people would promote the practice of farming and reading to future generations,...Thousand-Faced Handsome Man Hou Yuxiao, Black Extinction Demon Blade Hou Yucheng, Nation-Topping Demon Consort Hou Yuling, Blood Sword of Sunrise Hou Yujie, and Saint-Overturning Demon Confucian Hou Yuduan...Years later, looking back, the Hou Clan had already ascended to the pinnacle.