One Piece: Supreme Check-In System - Chapter 81: Return to the Voidreign Kingdom

Shuu is a member of the literary club that can’t write. One day, he gets a mysterious message on his phone from a girl called Eina, and from that impulsive contact, they begin to exchange messages. They talk of things like their shared interest in novels and grow close. However, when they try and meet, they discover a shocking truth. Eina lives… not in the present, but five years in the past! How will their love develop, parted by five years of nights…!?

This novel is also known as I Possessed a Demon Sovereign

Chen Luoyang felt that something was wrong with his transmigration. After transmigrating, he possessed the body of the highest expert in the world, the Master of the Demon Cult, addressed respectfully as the Demon Sovereign.

Generally, aren’t supreme experts the ones that leave behind a wisp of their soul behind and occupy a new body of some miserable low-level youngster then they go on a journey of revenge and make a comeback?!

Or perhaps it would be transmigrating into a miserable youngster’s body and obtaining a cheat slowly walking the road to becoming a God?

But why did his transmigration seem wrong?

Now my environment is full of big shots and I feel like I’m going to be exposed!

- Description from Novelupdates

During the Third Great Ninja War, facing numerous enemies, Mirukawa Kaito was not in a hurry, and his hands quickly formed seals.“Water Style: Water Shuriken”“Lightning Style: Thunderbolt”“Ice Style: Ice Beam”“Lava Style: Precipice Blades”…Everything returned to calm.In the messy battlefield, Mirukawa Kaito fell into deep thought. He looked at [Focus Sash] on his left wrist and [Mystic Water] on his right hand.After a long silence, he threw the newly obtained [Onion] hard to the ground!“Damn! I am really a Pokémon, right?!”

Bash, the Orc Warrior, is a Hero.

During the war, he crushed and defeated all that stood in his path. He is respected by all Orcs as the Orc among Orcs.

However, Bash has a secret.

He has no experience with women – he, the Hero, was a virgin.

For Orcs, who hold combat and sexual prowess in high regard, being a virgin was tremendously shameful.

With this in mind, he decides to embark on a journey.

In order to protect the pride and honor of his race, but mostly to finally get his d*ck wet, he decides to go to leave on a grand quest to find himself a woman.