Reincarnate as the Villainess's Husband - Chapter 9: Lord Neonidas

Lee Seongjin, the strongest hunter who defeated the demon king.
He possessed the body of the pig tr*sh Third Prince, the Holy Imperial Family’s shame.

But the members of this family… there’s something strange about them?

‘Overpowered’ Holy Emperor.
‘Regressor’ First Princess.
‘Player’ First Prince.

Lots of trouble and lots of words
The story of the Holy Emperor and his children.

Jack Smith’s life ended rather abruptly. Spinning out on ice while driving a truck was not the most magnificent method to depart this earth. A mediocre man he had led an ordinary life until his death. Now with a second chance at life, he decided that this time he would be exceptional. This time he would finally live up to his name. After all, a jack of all trades is a master of none but ultimately better than one.Armed with a system and determination to do his best he sets out like any other reincarnated soul in another world to find his place and achieve great things. There is just one small problem with getting started in this endeavour . . . he is yet to be born!Welcome to a progression fantasy with a twist. What might you be able to achieve if your race to the top began before your body had even been born?Join our hero as he masters the language, magics and skills of the Compass Kingdoms but his first great challenge will be learning to walk once more. . . . .Warning 1: Be prepared for the MC to spend an entire book's worth of words and time as an infant but hopefully you will enjoy it nevertheless.Warning 2: Grandfather is legally abusive to MC for a couple of chapters but he is removed from that situation around chapter 30. To be edited out some time in the future.

Luis Hartmann activated the mysterious Portal and began the journey of traveling between two worlds. In Immortal world, there are various immortal cultivators who can destroy mountains and live for thousands of years. In his own world, it is a Western fantasy realm where people can become knights or wizards, with different kinds of races. Luis, using the resources of both worlds, rises through the ranks. The life seed that knights awaken when becoming apprentice knights transforms into spiritual roots in the immortal world. With strategic wisdom, he helped his family become the eternal family, dominating both worlds. [Knight + Martial Arts + Immortal Cultivators + Family building]

An Individual from Earth finds themselves in the Shinobi World, equipped with a Scientific System. From that moment, he delved into scientific research far ahead of its time.