I'm 90 years old and the system tells me it's time to create harem - Chapter 25: But, I already have a boyfriend

A teenager named Evan Mason was reincarnated into the magical world of Harry Potter and goes to school at Hogwarts!
With only his knowledge of the future and great talent for magic, he takes the path towards the top of the magic world, only to realize that ever step he took, changed everything!

- Description from Novelupdates

In my previous life, I was half a move short and ultimately failed to reach the summit. Having traveled back to the past, this time... I want to become the strongest in this world! To become the strongest in this world, one only needs three simple steps: 1. Pick up a newly-transferred Demonic Sect Enchantress off the streets. 2. Subdue and vanquish the demon. 3. Take her cultivation technique for myself. Awesome! I’m already invincible! ———————— Years later, Yan Yu, who had earned the title of “the strongest,” was interviewed on television: Host: To whom do you want to give thanks for your success today? Yan Yu: I’d like to thank a very important woman to me. Host (eyes lighting up): Oh, is she your wise and virtuous wife? Yan Yu: No, consider her a stepping stone, I suppose. Host (wiping sweat): Then... what about the other members of your team? They must have helped you as well, right? Yan Yu: ... How could there possibly be only one stepping stone on the path to godhood?

Master is a sage-like character, but is an out and out veteran rogue inside.

First Senior Brother has the external appearance of an adorable leprechaun, but has an extremely crass and violent personality.

Second Senior Brother seems to be cultured and refined, but it can’t cover up his flirtiness and craftiness.

Third Senior Sister is seductive, enchanting to the extreme, yet is actually a crude tomboy who uses brute force.

Fourth Senior Brother is shockingly handsome to others, but in private, he is a proud, battle-crazy glutton with a poisonous tongue.

The Zhu Zhu who looks very homely and unrefined was forced to live life among this group of beautiful people; it could be said the pressure was huge.

Could it be that the heavens are doing this to project her beautiful heart?!

Fortunately, not only did she have a divine pig for protection, she even knows a supreme skill —— how to disguise as a pig who can devour tigers!

Alyschu Note: The zhu in Zhu Zhu and pig sound the same in Chinese! Same with the title and author!

- Description from Novelupdates

Coco Coison, after her untimely death at the hands of a fairy, finds herself transmigrated into the body of Coco Hughes, a woman with a troubled past. However, Coco was bestowed upon an ability: she was given abilities similar to Lala, a garden fairy, as compensation from Lala's sister.Eager to embrace her new life and start afresh in this unfamiliar world, Coco soon discovers that her new reality is far from what she wanted it to be.She encounters the four husbands of Coco Hughes, only to learn that they harbor deep resentment towards her due to Coco Hughes's abusive behavior— both physically and emotionally.Despite her intentions to lead a better life, Coco realizes that she must go through the complicated relationships and work to mend the damage caused by Coco Hughes to the husbands, who are now tied to her fate.Coco Coison must confront her past actions in a world where she is both an outsider in the lives of those Coco Hughes has wronged while carving a path for her to separate herself from her husbands.However, they seem to have another plan.“Where are you going? Stay for the night.” The first husband who doesn't like her presence around the house had started to let her stay.“Coco, what the f*ck are you doing? I told you to not lift a hand after coming back from outside!” The second husband who likes slaving her, cusses her out from trying to make herself a cup of tea.“The librarian told me that you went to the main city to get me books again. I thought I told you to stop doing that and put yourself at risk?” The third husband who loves books more than anything else had scolded her for doing her supposedly weekly errand told by him.“Who told you to go and ask those mediators to sing for you? I'm here, I can do it for you.” The fourth husband who doesn't like to sing for her had made it his daily task to sing for her before she goes to sleep.Coco Coison only wanted to live her life peacefully and earn money so she could divorce the four husbands, but it seems like they didn't want that.“It seems that tons of leeches want to have you around, huh? How about we get ourselves busy and have some kids fill the empty space of this house?”