Transmigrated Become Sukuna, but the host is Yukinoshita Yukino? - Chapter 3 - : Something is Here

Jian Wushuang was reborn in adversity. In order to get his revenge, he began to cultivate Heavenly Creation Skill. With the help of the Heaven defying cultivation method, Jian Wushuang gradually grew into a peerless genius from an ordinary practitioner. With a sword in hand, no one is his match. Using his extraordinary Sword Principle, he killed all his opponents and eventually became number one Sword Master from time immemorial.

- Description from Novelupdates

Jin Runcandel is the youngest son of the greatest Swordmaster. After he gets himself kicked out of their clan, he meets a tragic fate…but before he dies, a God gives him a second chance. Now he must use his new power for good.

HAPPYENDING -THERAPEUTIC – SWEETANDCOOL

Lin Jiao and Gu Quan have been in a relationship for two years. For his sake, she played the good and obedient little lady, willing to be as humble as possible. She thought that Gu Quan loved her as much as she did.But at a party, she heard him say to someone, “Lin Jiao is very nice, but she’s not her.”It was only then that Lin Jiao realized how ridiculous she must seem to others. She left behind all the resentment and obsession and sadly exited the stage as he had a sweetheart he could not forget.-Later, Gu Quan was remorseful, and managed to find Lin Jiao.

He grabbed her hand tightly and said in a hoarse, pained voice, “Jiaojiao, forgive me, okay?” He was hoping that she would forgive him easily as she had always done. However, he was alarmed when a certain figure walked into his line of sight.“Darling,” he said as he pulled Lin Jiao backward, giving Gu Quan a smug look. He leaned over to Lin Jiao, touching her face softly. “Let’s continue?”

The second prince has come of age. To celebrate the advent of such an occasion, the search for a suitable bride began. My younger sister was expected to go to the Royal Palace as a candidate. However, despite this, she eloped the day before her departure. I, the older sister she left behind, looked almost exactly like her – so much that we were often mistaken for twins…

One month, right? For just one month, shall I substitute in for my sister?