MTL - I Really Don’t Know How To Practice - Chapter 899 clearly stated

Once upon a time, the Land of Promise thrived under the cycle of the four seasons change. Until a vengeful enchantress cursed the land, and divided it into four realms each with a ruler to bear its burden.The people suffered for years under the endless heat in the Summerlands, the bitter cold in the Winterlands, the never changing bloom in the Springlands and the constant fall in the Autumlands.A prophecy whispers of a marriage between a king and queen that will release the land from its curse and unite it under a single kingdom.Princess Caroline is forced to marry the Summer King, will she be able to fight for a peace amidst a court full of power hungry nobles and will she succumb to a burning love in the arms of a fiery warlord?

She gave up her dream of shining on the ballerina stage —for him.She sacrificed her self-respect —for him.She forgot her true identity —for him.But even after all that, she couldn’t compare to the woman who held Ryan’s heart.Arwen Quinn, heiress of prestigious Quinn family, realized too late that no matter what she did, she would never win Ryan’s love. The future that awaited her was a life trapped in endless misery of a loveless marriage.So, decisively, she ends their relationship and walks away. What she didn’t expect was that in breaking free from Ryan, she had opened the door for Aiden to enter her life — a chance that he had been waiting for.Aiden Winslow, an enigmatic CEO isn’t just mysterious —he is determined, and won’t allow to take Arwen away from him again.____Excerpt:Aiden narrowed his eyes, “Are you sure about this?”“If I wasn’t sure, I wouldn’t have asked,” Arwen replied coolly. “Stop dawdling. If you’re unwilling, I’ll find someone else who can get the marriage certificates today.”His expression darkened as he pulled her close. “Once offered to me, it’s mine alone.”Unfazed, Arwen asked, “So, do you accept? If yes, we’ll get the certificates now.”“On one condition,” he said. “I don’t do contract marriages. The woman I marry will be the woman I share my bed with. If you agree, then we’ll—”“Not a problem. Let’s go,” Arwen said without letting him finish, pulling him into the Civil Marriage Bureau.

This novel is also known as Long Live the Mad Wife!

Daughter of the Feng Family, born a waste. Forced to marry a fool in an attempt to expel evil influences. When the first killer from the 21st century possessed this body, the sky and the earth surged. She was indifferent and cold-hearted but she let her guard down around him alone. She thought he was a pleasant sheep but didn’t expect him to be a gray wolf in disguise!

- Description from Novelupdates

-Includes mature content/2chps a day-Eizkel Rhyse, a 21-year-old who dies unexpectedly—only to be granted a second chance at life in a parallel world that closely resembles Earth. Gifted access to a mysterious golden interface called the Record, Eizkel can now track his attributes, develop skills, and receive “quests” with real-life consequences. Reborn as an 18-year-old university student, he must adapt to a new identity, unfamiliar surroundings, and the subtle chaos of everyday life.As Eizkel begins building relationships, he learns that a second life doesn’t need to be extraordinary to be meaningful. A story that blends heartfelt humor with introspective moments, highlighting the beauty of genuine connection, personal growth, and the chance to start over.With witty dialogue, emotional depth, and grounded slice-of-life charm, all about the rediscovery of oneself, finding comfort in the ordinary, and learning that the small things often matter most.