Shadow Monarch's Requiem - Chapter 55: The Throne Beyond Eternity

Hiro transmigrates and finds himself in the body of an orphan that’s about to be evicted from his orphanage. It wasn’t anything personal, but the orphanage’s policy doesn’t accommodate children who have reached the age of 16.From the gates of that humble establishment, Hiro slowly explores the facets of this world that was both familiar and unfamiliar due to its uncanny resemblance to his previous world—Earth.With his Daily Life RPG System urging him to excel in every aspect of his daily life, Hiro marks his presence in both the mundane and mystical circles of this new world.

A normal guy gets hit by a truck and isekai'd. Why? Because trucks are apparently some cosmic loophole. He decides to be a dungeon, because it sounds weird and interesting to be one. Is it? Let's find out.

Crossing into the world of Naruto, and acquiring the One Piece system, with all the powers of the world of One Piece, swordsmanship, devil fruit, domineering.

-Do you think that your fire is very powerful? I have the burning fruit.

-Do you think that your thunder is very powerful? I have a thundering fruit.

-Do you think that your otter is very powerful? I have the frozen fruit.

-Did you said you want to die? Don’t worry, I also have a nickname: Death Doctor.

- Description from Novelupdates

An angel made a mistake, resulting in Shiihara Daiki’s death. In order to hide the mistake, he was then sent to a different world. The angel will grant him one wish as a payment for keeping it a secret. Daiki asked for a Heavenly Castle floating in the sky without hesitation.

Suddenly a floating castle appeared in the new world, which causes confusion amongst the people. They attempt to contact Daiki in various ways. A country tries to steal it by force, while another seeks to befriend him. What in the world would Daiki do?