The Demon Lord's Bride (BL) - Chapter 59: There’s no such thing as acting nonchalant after your first time

A boy from 21st century Earth, met an accident and later was reborn in Naruto’s Ninja World.
He is born in Uchiha Family and becomes the useless brother of Itachi Uchiha and Sasuke Uchiha…. Let’s see how he changed the Naruto world.

- Description from Novelupdates

Guang Xiaoyu always thought her senior brother was a dispirited ordinary person, until one day, his pet cow crushed an entire group of Divine Kings with a single stomp.The black dog opened its mouth and expelled a Sword Qi, blocking millions of the Demon Race.The Earth Chicken that babbled every day turned out to be a descendant of the Ancient Phoenix!Ahhhh!Her worldview collapsed!Zi Ji: “Senior sister, it's terrible! The Demon Emperor is leading an army of millions from the Demon Race towards us.”Guang Xiaoyu: “Senior brother, help!”(This is a story about the Demon Emperor’s rebirth, the Netherworld’s daughter’s reincarnation, the protagonist's pet-keeping journey, and a call to everyone to love and care for small animals!)

In a distant future, seven centuries after the cataclysmic mana storm, the world of Gaïa transformed into a realm infused with magic. The fabric of reality shifted, revealing the manifestation of stats, skills, and levels through ethereal windows, visible to all. A new era emerged, where humanity awoke to the concept of Classes, bestowing upon them unique abilities and the potential for greatness. However, only the truly exceptional would ascend to seize the Throne in this extraordinary Era of Players.Noah uttered profound words, his eyes shimmering with an unearthly force. “Life itself is akin to a prison, but fear not, for I, Death, shall set you free.”

This is probably the story of a modern man who became the Seventh son of Kangxi in the Qing Dynasty. This is probably the story of how the Seventh brother Yinyou worked hard and fell in love by the way. So there is no doubt that this article is ambiguous, and it is easy to guess who the couple is.

- Description from Novelupdates