Kyoukai Senjou no Horizon – Girls Talk - Volume 1, Chapter 13: Truth and Answers

Once upon a time, the Land of Promise thrived under the cycle of the four seasons change. Until a vengeful enchantress cursed the land, and divided it into four realms each with a ruler to bear its burden.The people suffered for years under the endless heat in the Summerlands, the bitter cold in the Winterlands, the never changing bloom in the Springlands and the constant fall in the Autumlands.A prophecy whispers of a marriage between a king and queen that will release the land from its curse and unite it under a single kingdom.Princess Caroline is forced to marry the Summer King, will she be able to fight for a peace amidst a court full of power hungry nobles and will she succumb to a burning love in the arms of a fiery warlord?

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

Lucien, a guy who has nothing but the desire to save his mother. To get strong enough, he makes a contract with the demon of L.u.s.t. And now, only by making a great harem, will he gain the power to protect those dear to him.

“What! The young master has married another concubine?”After Gu Changge is bound to the system, sharing innate talent and even cultivation results with a Daoist Couple (wife) is possible. Whether it's consuming elixirs or treasures from heaven and earth, or from daily cultivation, everything can be shared!“Just by binding with one partner, I went from a waste to a spiritual body. What if I had multiple partners?”Since that day, he realized that working hard in cultivation was not as effective as taking in more spouses, and that taking elixirs himself was not as good as feeding his wives!The aloof and warm-hearted sect's holy maiden, the playful imperial princess, the dragon race's transformed girl with white hair...【Your Daoist Couple has cultivated through the night, shared cultivation progress!】【Your Daoist Couple has grasped the essence of swordsmanship, shared insights!】【Your Daoist Couple has consumed a supreme snow lotus, comprehended a law, shared!】【Dual Cultivating with your Daoist Couple, rewards...】(Disclaimer: Dual Cultivation is a unique method of cultivation where a man and a woman cultivate together by having sex)As he feeds his wives every day with ease and pleasure, he unknowingly becomes a celestial being, perfects the holy body, and stands above all living beings!(The story is focused on daily life, is lighthearted with a touch of humor, and does not stress the protagonist)