Zero no Tsukaima - Volume 15 Chapter 8

Edwin was once a world renowned scientist, attested for his understanding in genetic. Was. Involved in a scandal, he was disgraced and thrown to the dirt. And when he wanted to commit his final act of revenge upon the one who threw him there, he die, not by the assassin sent after him, but death through the illness that have been plaguing him since childhood.However, after death, he soon woke up in a brand new world, one filled with magic and monsters. However, he woke up as demon, enemy of humanity, and given a system that will help him empowered monsters through either magic or genetic modification.-x-“Hah, enemy of humanity, I like that. When have human ever been grateful to me! Now, I will plunge the world into an age of demon and monsters!”Filled with desire to watch the world fall into ruin, Edwin, now Alros Kadarni, will cause as much destruction as he can. From one kingdom to the next. From one continent to the other. All by using the different danger zones that is feared by all sentient beings that is not monsters not demon.

After marriage, his little wife openly stared at other men at the ball!It seems that the family is not strict, directly take home a good education!

The most vulnerable time in a tennis game is when you are leading; even if there is a match point, the game is still possible.

Football is round, tennis is also round.

- Description from novelbuddy

Luo Qing Chen is a wandering spirit that died thirty thousand years ago, roaming the Chaos Space

In order to not turn into dust, she is bound by an ice cold system to travel through time and space to complete missions.

Girls that pretend to be weak?  Slap them without explaining.

A silly cannon fodder?  Helping them amass treasures.

Meeting a real male god?  All of them will pamper.

System: Dear masters, what do I do if my host even dares bully the heavens?  Waiting for an answer, it’s urgent!

A certain male god: Change systems.

System: ヽ〔?Д?〕丿

- Description from Novelupdates