I opened a shop on the Astral Train - Chapter 119

Because her appearance was not breathtaking, the Emperor breaks off their engagement and bestows her instead to the bloodthirsty, ruthless, and cold-blooded Second Prince (Wang Ye).

On her wedding night comes endless humiliation, the genuine Princess Consort becoming a deserted women. A foolish woman before rebirth, she no longer expects his love. In this world, she must possess enough talent to awe those around her, carrying herself with composure and articulating with beautiful diction, override above the nine night.

- Description from Novelupdates

“I curse you to never die in peace!”

Thus, Shang Ke started a never-ending (forced) cycle of constantly throwing away his miserable life.

He would always show himself as a martyr while letting others cry over his death.

It was because of a woman’s curse that Shang Ke was hit by a car and turned into a human vegetable. This led to him becoming bound by an unlucky system in which he was cursed to die. The most unfortunate part was that he never cheated on anyone’s feelings. The reason for why he was cursed by a woman was because of a guy named Qi Chen. Qi Chen was a ladies man, and he would always use Shang Ke as an excuse to break up with any woman that he was with. As a result, Shang Ke was always blamed for the breakups. Since then, the main character could only be forced to cross into different worlds. He would thus experience for himself, the hero’s “thrill”.

- Description from Novelupdates

5 years after the world changed, the final boss appeared.

The top five players in the world, including Specter Seo Jun-ho, finally defeated the Frost Queen…

But they fell into a deep slumber.

25 years passed.

“A second floor? It didn’t end when the Frost Queen died?

Specter awakes from his slumber.

“Do you like me?” “Yes...” “When did it start?” “A long time ago...” “Will you always like me?” “The fireworks...will always be with you...”Looking at her upturned face, the girl's timid hand was gently lifted up. The warmth in her palm has always been so familiar. “Want to go watch the fireworks together?” “Yes.”The summer fireworks blooming in the deep night are just like your touching and tender smile twelve years ago.----------------------------------PS: Youth daily life story, childhood friend single female protagonist.