Cruel, bloodthirsty demonic cult leader bottom x super-genius, all-around engineering top
[As a brilliant engineer with exceptional hands-on skills, Jiang Qi spends every day researching data, eating, and sleeping.
He never expected that his smooth-sailing life would end in a car accident.
When he wakes up, he finds himself in another dynasty, in his own body. Then, while out one day, he comes across a breathtaking beauty.
Damn it, Jiang Qi recognizes at first sight that this is the wife fate has chosen for him.
What he doesn't know is that he's transmigrated into a book, and the stunning beauty he picked up is Feng Xuanyi, the great antagonist who's always opposed the protagonist.
Jiang Qi, who falls in love at first sight (or, more accurately, lusts at first sight) after discovering this: ...
No big deal. It's just the protagonist. I'll kill him and be done with it.]
[The top is extremely smart, but not much of a fighter.
The bottom is incredibly powerful. Crushing the top is as easy as crushing an ant.
The only reason the top can dominate the bottom is that the bottom indulges him.]