Koko wa Ore ni Makasete Saki ni Ike to Itte kara 10 Nen ga Tattara Densetsu ni Natteita - Chapter 31 - How to Protect the Lord God Fowl

Crossing into a different world and impersonating the Lord of a city, a city encompassing five hundred miles, an elder sister having celestial beauty, and double digit number of lovers.

Tasked to revive a perilous family, Lanling, a third year university student, felt an overbearing pressure on his shoulders.

Hosting the Demon Star in his body, he can directly devour other people’s force and make it his own, he crossed through with a sole mission: To Utterly Destroy This World!

From being the Lord of Tianshui City, becoming the Queen’s husband, to being the World Destroying Demonic Emperor, he became the King of the entire world.

- Description from Novelupdates

Ash Flameheart, a young boy who aspired to be a Greatest Beastmaster Of All Time, was on the verge of death. Betrayed by the Hero’s party, they left him to die in the hands of the Demon King’s army.As his llife gently ebb away after he muttered his last word to the world.“Ahh, I wish I could fly, free as a bird, soaring through the skies and beyond.”After his untimely demise, his soul transmigrated into another world. The Immortal Beast Realm!An eternity later, Ash opened his eyes and found himself encased in a dark space.Beep![Beast Master System has been installed into a new host][Calibrating the Host…][Name: Ash Flameheart][Species: Heavenly Phoenix][Growth Stage: Hatchling Phoenix][Cultivation Arts: Heavenly Beast Taming Art | Feather Swords Gather Array (Not Not Yet Learned) | Eternal Blood Flames(Not Yet Learned) | Ten Thousands Faces Mantra(Not Yet Learned)]Survival of the fittest!Tame or be tamed. Kill or be Killed!

An ineffable rebirth, taking advantage of a mystical magic cube that was produced from rebirthing to pass through various worlds(anime, novel, movie, games, etc), collecting whatever I want to obtain!

- Description from MTLNovel

King Grey has unrivaled strength, wealth, and prestige in a world governed by martial ability. However, solitude lingers closely behind those with great power. Beneath the glamorous exterior of a powerful king lurks the shell of man, devoid of purpose and will. 

Reincarnated into a new world filled with magic and monsters, the king has a second chance to relive his life. Correcting the mistakes of his past will not be his only challenge, however. Underneath the peace and prosperity of the new world is an undercurrent threatening to destroy everything he has worked for, questioning his role and reason for being born again.