Damn it, I'm surrounded by childhood sweethearts - Chapter 513 - 361. The base stealer is here

The world that nurtured the civilization which reached the pinnacle of magic was on the verge of destruction.
The last survivor transmigrated to the past, when the magic civilization started growing, as countless mages were still fumbling their ways through the thorny paths of magic knowledge.
He, who came from the end of the magic era, aim to reach the pinnacle of magic.

- Description from Novelupdates

Mc unexpectedly got into a very funny accident during a mission and died then reincarnated in this new wonderful world.

Before reincarnating he met a very beautiful goddess who unexpectedly took him as a student under his one wish which the goddess decided to grant him.

He learnt various kinds of things under goddess teachings and spent 1000 years practising them by heart under her watch.

Mc wisely used those years to learn everything he can handle and was sure he would need them.

So that’s how he got the knowledge to become Op quickly with a bonus as an eternal companion, Aashi.

After reincarnating in this world he started to fulfil his dreams one by one like having a big family with multiple beautiful and capable wives, and along the way conquering multiple realms.

After fulfilling most of his desires he sat in a peaceful home and said, “Now I can say for sure, my wish as a lazy otaku has been fulfilled. I remember I haven’t seen the new anime, my lovely wives, do any of you want to watch this anime together with me as I starting so hurry up otherwise, you will miss it.”

Disclaimer:

This is the story of Lazy Otaku who got the chance to fulfil his long-cherished wish.

So come join our 1000year old otaku soul, in his journey to be horne..cough…I mean a journey to conquer countless realms and how he makes the strongest & largest family in all the realms.

.....

Zhang Beichen downloaded a game called “The Empress of the Warring States Period”. He needs to play the role of a famous minister to help his monarch rule the world and become emperor.

He thought it was an ordinary game. In the game, Zhang Beichen tried his best to make friends with the empress, help her unify the seven kingdoms, and achieve different endings.

Until he woke up, Zhang Beichen discovered that he had actually come to the world in the game, and the magnificent empress in the game was standing in front of him!

The empress looked at Zhang Beichen with a cold and glamorous face, and thought: “He is the servant in the Sims who has made great contributions to me, but is rebellious and wants to marry me?”

- Description from novelbuddy

Heavy R 18 Yuri, harem and futa and non-humans.

Aurora had been human once before. But she had been betrayed by her only love and left to die at the bottom of the abyss. But she survived. As a result - she was granted the power and authority of a god. Being the only one to see the bottom of the ‘Great rift,’ she became a supreme being - A goddess.

Using this power to turn back time, Aurora vowed to free her love from the clutches of those who had been like poison to her. She would take revenge on the Abyss Tower.

Being the elite academy it was, Abyss Tower had no equal when it came to training people. Aurora could no longer allow that to continue. So she vowed to change things. She vowed to set up another academy and challenge The Abyss Tower for the Abyss's ownership.

But with the other gods and goddesses tossed in the mix, as well as the Abyss itself acting up, things were not going to be that easy. Especially since her lover's soul no longer existed as one in the past.

The more Aurora tried to straighten things out, the more it all tangled up. Did she really mess up by reversing the time? Or was an even bigger plot being brewed in the background?

And the truth of everything lies in the flow and exchange of energies between different bodies. In easier terms - to dual cultivate.