Naruto: The Outsider's Resolve - Chapter 4.22 (122):

As the leader of bandits, Yan Jinyi has been a bully for twenty years, and she ended up causing her own death. The next thing she knows, she wakes up and finds that she has become the Second Young Mistress of the Huo Family. Wielding her knife, Yan Jinyi starts to throw her weight around conceitedly again. Young Master Huo says, “If I’m still single, I’ll probably marry my sister-in-law.” Third Young Master Huo says, “If I could turn back time, I would have vied with my brother to marry my second sister-in-law. Miss Huo says, “If I were a man, my second sister-in-law would be my woman!” A CEO says, “I thought I was roguish enough, but I didn’t expect Yan Jinyi to be more of a hooligan than I am!” The Best Actor says, “Huo Xishen, why are you still not divorced?” Second Young Master Huo points to Yan Jinyi and says, “She is mine.” Rumor has it that the second daughter-in-law of the Huo Family can beat a home wrecker up and is especially good at making money. Countless bigwigs are lining up to make a cuckold of Huo Xishen.

After dying in an oddly anticlimactic vending machine accident, Kazuki Ren is reincarnated in the demon realm—not as a hero, not as a villain, but as the only human male student enrolled at the mysterious Academy of Ruin, a school where all the professors are demon lords and all the students are powerful, beautiful she-demons.Ren is told he has one task: survive.But there’s a catch. The Academy’s darkest secret is about to awaken, and Ren holds a hidden power that could either destroy the demon world... or rule it.Now surrounded by seductive demons with hidden motives, eldritch tomes, forbidden dungeons, and twisted exams, Ren must master his ability—or be consumed.Magic, mystery, danger, and temptation await in this dark academia harem fantasy.

I became the wife of a man with a lover. Well then, I guess I have to protect his chastity?

“You can sleep on the floor then.”

“What?” His eyes said he didn’t want to.

Well, yeah. The floor was hard. Then it couldn’t be helped.

“I’ll just hold your hand and sleep. You trust me, right?”

But, how come the bed broke on my first night with my husband?

*

Aristine, a princess confined out of the Emperor’s sight.

When in reality, she was the owner of the [Monarch’s Sight], able to see the future, past, and present.

She, who became the sacrifice for a political marriage, was married off to a terrifying barbarian…

“The most precious things should naturally be given to my bride.”

But her husband, whose monstrosity she prepared for, was way too normal.

However, he belonged to someone else.

‘I’ll go make money then.’

She might as well make the goldfields her own.

*

Can Aristine really achieve her dream of living freely on a pile of money?

Or will she end up killing two birds with one stone?

This novel is also known as Only I Level Up

10 years ago, after “the Gate” that connected the real world with the monster world opened, some of the ordinary, everyday people received the power to hunt monsters within the Gate. They are known as “Hunters”.

However, not all Hunters are powerful. My name is Sung Jin-Woo, an E-rank Hunter. I’m someone who has to risk his life in the lowliest of catacombs, the “World’s Weakest”.

Having no skills whatsoever to display, I barely earned the required money by fighting in low-leveled catacombs… at least until I found a hidden catacomb with the hardest difficulty within the D-rank catacombs!

In the end, as I was accepting death, I suddenly received a strange power, a quest log that only I could see, a secret to leveling up that only I know about! If I trained in accordance with my quests and hunted monsters, my level would rise.

Changing from the weakest Hunter to the strongest S-rank Hunter!

- Description from Novelupdates