I'm The Devil - Chapter 17: Council of God kings

Xiao Yu transmigrated into an interstellar novel and became a mermaid Omega.
It’s just that he was unlucky, traveled to a desolate star that was about to be destroyed, and fell in love with the villain in the book.
what to do? I can get by, but how far can I go?
Ji Canghai was a five-star general admired by thousands of people, and also a notorious star thief. He is an invincible general on the battlefield and a nightmare for the enemy.
No one knew that this cold-blooded and merciless killing machine left the only softness in his heart to his little mermaid.
Due to genetic defects, the mermaid family will gradually become violent and eventually die without the help of mermaid Omega.
The mermaid race, which has not been born for hundreds of years, is miserable. Not to mention the shortened life expectancy, technology, culture, and mineral resources are also greatly restricted.
Xiao Yu, who came across time, became the mermaid’s only salvation by accident, and was also hated by the mermaid’s enemies.
When many forces are vying for him, only Ji Canghai will always stand by his side, never leaving him.
“Others look up to you and worship you because you are strong enough to protect or take their lives.”
“I am the only one in the world who loves you, not only because I yearn for your body.”

Content tags: Qiangqiang Interstellar Wearing Books Shuangwen
Search keywords: Protagonist: Xiao Yu ┃ Supporting role: Ji Canghai ┃ Others:

- Description from novelbuddy

In Ten Heavens Domain, full of respected powerhouses, juvenile Ling Tian accidentally obtained a mysterious iron sword. He refined the Supreme Martial Dao, studied the Divine Spirit Array Laws, fought Ten Thousand proud and arrogant Heavenly Clans, and was undefeated! Seven Feet Sword Tip sweeps away the world, within the Ten Heavens, I am the Supreme God Monarch!

- Description from Novelupdates

This is the tale of an earthling, who transmigrated as a dying third-rate god but somehow rose through the ranks, gaining followers and eventually causing the Fourth Great Apocalypse.

After finishing the DxD light novel, a Warhammer 40K fan loses his life and finds himself, without any clear explanation, in the body of an angel banished from paradise by his Heavenly Father.[Ding!!!][Congratulations, Lord Sanguinius.][You have been selected to become a member of the dimensional discussion group.]“'m just a member... not the administrator?”Author's Note:A story born from a whim, but one that can flourish with your support.## Warning:I do not own any of the works represented here, such as DxD, Warhammer 40k, or others (the cover doesn't belong to me either).This is a harem (small, but still a harem).Author’s note:!!!! Another important piece of information!!!Please, do not read this story if you are unable to distinguish between an Ecchi light novel and religious events or statements related to various sacred scriptures.If that’s not the case for you and you post crap in the comments, I’ll just delete it (this is a fanfic, not a place for religious debates or discussions related to the divine word).Honestly, I didn’t want to include this in the synopsis (it makes me seem like I hate faith when I actually have religious friends), but a VERY intelligent reader managed to persuade me to explain to people the difference between an Ecchi light novel and the precious writings of human history