My Pretend Husband

Akasuna Sasori, in order to find out the truth of his parents death, applies for work at a private school owned by the only living suspect of the case.
But the school has a rule. Only married people can teach there.

And in comes Haruno Sakura, a woman who's in desperate need of money.
It was all supposed to be just an act, but as each 28 day passes... She can't help but fall in love.