I Woke the Sick and Disabled Prince on Our Wedding Night - Chapter 486 - : Secret

As the son of the second generation Hokage Senju Tobirama, and Uchiha Izuna, Haru suddenly had countless complaints in his heart.

However, it seemed like there wasn’t much of a problem

Because Ninja World’s strongest connections had been born!

The first generation Hokage, who has the title of God Ninja World, is my uncle!

The super boss behind the scenes, Uchiha Madara, is my uncle!

Princess Tsunade, you have to call me uncle.

Alas, this damn seniority!

As for me, Senju-Uchiha Haru, I could have been a dandy in Konoha, but in the end, I was forced to unify Ninja World. What should I do?

Fortunately, there were golden fingers…

Because I like to collect antiques, I was accidentally brought to a magical world by a crystal skull in my collection.

- Description from novelbuddy

The young lord of a small and weak country saves a dragon beside the sea one day.

One day, Luo Jian woke up from his sleep and found himself in a locked chamber where the door and window were all sealed. A note with a few lines written on it was tacked to the wall: “Escape from this room within an hour, otherwise, you will die.”

There is a sequel called Reincarnation Night (轮回之夜) that takes place in the same universe but has different main characters

- Description from Novelupdates