Ryuu Kusari no Ori -Kokoro no Uchi no “Kokoro”- - Chapter 9[LN] Volume 2:

As the second daughter of Ningyuan Army General, Qin Wanru, who had been set up by her so-called mother and elder sister, lost her reputation and suffered a lot on her wedding in her previous life.

Now she was reborn and returned to the time before she married to Qi Tianyu, the first son of the magistrate of Jiangzhou.

The rebirth gave her a chance to revenge on her own wedding and uncover the plot of her mother and elder sister. Would she be able to change her fate?

- Description from Novelupdates

After breaking up with his girlfriend, he accidentally acquired a genius system and rose from there against the heavens, becoming invincible..

- Description from Novelupdates

“Legend had it that in the deepest part of the oldest galaxy, there was a door as red as blood and fire.

Legends and myths, darkness and light, countless stories passed through this old door.

The Door of Constellation that overlooked everything would warn the sky and earth, sending darkness back to where it belonged.”