One Piece: Unreal Adventure - Chapter 31: Tsundere

A magical ring and a mighty spirit inside the ring, coupled with a genius who lost his cultivation and got named worthless trash. That’s Xiao Yan, the poor genius. You think Xiao Yan got it bad? Well, you clearly have not met Jing Yan.

Jing Yan was once the shining star of the whole East City. However, his cultivation dropped because of the Universal Ring that was left to him by his dead grandfather. Without anything but the Universal Ring, he will once more rise towards the top and beyond!

He is Jing Yan, The Universal Sword God.

- Description from Novelupdates

Karl Adelheit, a self-proclaimed ordinary student returning from military service.

And a nobleman who enlisted as a soldier and received Medals of Honor.

Revisit the peak of the Olympian lore.... An eighty year old scholar who has been a fan of Greek mythology since childhood finds himself reborn as the titular ruler of the underworld, the death god Hades after a tragic death. But the gods of Olympus are very much different from what the stories say. He will have to navigate through his new life as a god and prevent a coming calamity... All while not getting caught... How does it feel to be a god in Olympus? A tale into the heart of myths.

Reyhan Alther died at the age of 20 and was reincarnated… as the wind. Formless and directionless, he drifted through a new world filled with wonder and cruelty. But from that breeze, everything began. With a mysterious power called the Divine Spirit System, Reyhan slowly rose—guiding spirits, gathering followers, and changing the course of the world. From a lonely gust, he became a figure known as Father… even to the gods.A battle of fate awaits. But before that, there's still time for the wind to whisper… and maybe crack a small joke or two.