Toaru Majutsu no Index: New Testament - Volume 7, Chapter 1: Altar of the Wisdom King. Foreign_matter.

Xiao Shan is a famously profligate prince, the kind that makes his emperor father angry just by being seen. Xiao Shan’s greatest wish in life is to be a salted fish who lives without any worldly strife, until his father bestows upon him Xie Zhui, a ger who has been mixing with men, to be his bride. Xie Zhui took his brother’s place in the army at fourteen, achieved great merits by successfully defending against enemies outside the northern border city at sixteen, and was discovered to be a ger after being seriously injured at eighteen. After returning to the capital, the emperor pardoned Xie Zhui’s crime of deceiving the monarch and bestowed him to Xiao Shan as his rightful spouse. Everyone says that Xiao Shan has married a ger who came out of a pile of men, with a vast grassland above his head. They think about how much the emperor must dislike Xiao Shan to have given him such a troublesome marriage.

[Ding! Dragon Monarch System has been activated.]
Aditya finds himself in the body of a 19 years old dragon. Aditya learns the misfortune fate of the former Aditya. Being a man from the 21st century, Aditya decides to change his fate.
Being married to the 7 goddesses of this world, Aditya walks on a path to prove himself to his wives and to his family.

"Goddess of War"
"Goddess of Alchemy"
"Goddess of Wealth"
"Goddess of Wisdom"
"Goddess of Lust"
"Goddess of Music"
"Goddess of Nature"
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Disclaimer: - The image used is not mine. If the author messages me, I will take down the image.

In a world where every profession has its own system, one's fate is determined by the job they awaken. Reynard Vale was cursed with the weakest profession—Unskilled Laborer—a dead-end path with no future. Mocked, powerless, and abandoned, he saw no way out.But on the night he chose to end it all, the system intervened.[Congratulations! You have awakened the hidden profession: Jobmaster (SSS-Class)!]Now, with the ability to learn, switch, and master any profession, Reynard is no longer bound by limitations. From boxer to librarian, investigator to world leader—every skill, every class, and every power is his to wield.The world that once looked down on him will soon bow before the ultimate professional.

Never had the Radcliffe family expected their son-in-law, a loser in their eyes, to be the hidden Dragon Lord who had lived for myriads of years...