The World's most Overpowered Side-Character - Chapter 364 Outside of the Grand Collective.

Akira Kisaragi traverses into the Bleach world, unlocking a check-in system.He initially thought that by checking in daily, he could become stronger, soon become the Captain-Commander, join Division Zero, punch Yhwach, kick the Soul King, and marry Unohana...However, the system's style wasn't quite what he had imagined.〈 Check-in complete, obtained Genryūsai Yamamoto's secret roasted sweet potato! 〉〈 Check-in complete, obtained exclusive attribute: King of Normal Attacks, effect... 〉〈 Check-in complete, obtained Retsu Unohana's... 〉Akira's eyes suddenly lit up!“Seems like this might not be so bad after all!”

Waking up from a hangover, Wang Hao finds himself reborn in an alternate world. To his delight, he realizes that he has a system to help him in this new world. However, his system turns out to be a highly unconventional one. Instead of serving justice and winning the respect of other people, Wang Hao has to do all kinds of bad things in order to make use of the system. So, Wang Hao embarks on the journey to being cursed for good…

Xie Lanyin has a beautiful face with white skin so relying on her face to live is no problem. Furthermore, the prince that she marries is a phonophilia (someone who loves voices/sounds).

A handsome man saving a beauty, he lets her sing songs to repay him.

Getting angry and yelling at him, he’s intoxicated.

At night when he wants to sleep, her words are hypnotising.

When he doesn’t want to sleep, her words become the best ……

Qin Wang: You think too much, the thing I like best is you as a person.

This is a story of a prince spoiling his wife, until even when he becomes a king, he’s willing to bend back so far that he could even break his waist – it’s that kind of story.

- Description from Novelupdates

That year, she made a run for it while pregnant. He was a powerful figure in the Malacca Strait, commanding respect in both legal and illegal circles. He allowed no one to cross him. So, at the engagement party when she was 25, a stranger in black claimed that the bride had taken his virginity and insisted that she take responsibility and return his... child.“Do you also want to marry me?” she asked him. Although the wording was wrong, they were both getting married, so he agreed to “marry” her. Having a child and taking the wife's surname seemed like no big deal to the big boss. Surprisingly, he decided to retire and become a stay-at-home dad, shocking his brothers!