Water Magician - Extra 4 Grand Knight Commander and Chief Knight

A world where men don’t exist. A kingdom ruled by powerful, dangerous women. And Henry the only male in existence has just landed in the middle of it.To some, he’s a treasure. To others, a possession. But to Lady Seraphina, the most powerful woman in the realm? He’s hers. Whether he likes it or not. Now, trapped in a world of seduction, power, and deadly intrigue, Henry must survive forces far beyond his control before he loses more than just his freedom.

He swore that if he was given a second chance to live, he would live his life to the fullest.His life was full of misery but he was reincarnated in the body of the son of the strongest expert in the empire.He had the looks, wealth, and women. He was known as the “Handsome Playboy” and he didn't want to become a righteous protagonist.He awakened a system that can make him strong by making others feel the 7 sins towards him.He will collect many beauties and live to the peak of life.

In a world heavily dependent on technology, humanity always strived for more. And when they transferred the human consciousness into a virtual world, everything changed.

People got different systems, some unlocked superpowers while others simply became stronger. There were all kinds of things people obtained, and they all came from an unknown world later named “System Online”.

A virtual world that allowed people to get stronger as they played in the world in a manner that altered their destiny, raised their strength, and gave them a chance to be what they never were.

Follow as the main character enters this world to change his destiny and help out his loved ones. However, never did he know that he would become someone at the center as the whole world faces doom.

Read how this world of System Online becomes the cause of the apocalypse on Earth a hundred years later while a new even more vast universe opens up to humanity while the world of System Online descended on Earth as both worlds merge in some unexpected circumstances.

This all leads opens to Universe where humanity's survival hangs at the stake.

A universe where humanity is at the bottom and countless races eye Earth for its resources and treasures.

A universe where the strong prey on the weak.

Daiki Tsukasa transmigrates to a world of everyday anime crossovers.At the start, he purchases a Special-Grade Cursed Object, activating the Great Collector System.As long as he collects valuable items, he can receive rewards.『 Congratulations, host, for collecting the Special-Grade Cursed Object — Sukuna's Finger. Reward: Innate Domain — Malevolent Shrine! 』『 Congratulations, host, for collecting the Yukinoshita Family. Triggered Triple Bond. Reward: Immortal Dual Cultivation Technique! 』...Miku Nakano: I was here first! Get lost, you vixen!Yukino Yukinoshita: Could you stay away from my sister?!Iroha Isshiki: Senpai! You won't abandon your cute kōhai, right?۞۞۞T/N: Be advised that characters and powers will be used, but not necessarily in the exact order, logic, manner, or arrangement that occurs in the original. Some stories will obviously be changed to fit into this mixed world with so many characters.