Sense - Chapter 53: Online Star (12)

A mecha otaku is reincarnated into another world as Ernesti Echevalier (Eru). In this world there exist huge humanoid weapons known as Silhouette Knight. Dreaming of piloting those robots, Eru, with childhood friends, Archid Walter and Adeltrud Walter: together they will aim to become a Knight Runner, pilot of Silhoutte Knight.

Reborn into the world of Yugioh, it's natural if my goal is to become the best duelist!

“When everyone worked hard just to obtain pills, artifacts, wealth, or power. Well, hehe. All I need to do is buy them through the Invincible Exchange System!” Our protagonist said with a smirk on his face.

- Description from Novelupdates

[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.