Zaibatsu Reijou wa Kowamote kare ni Semararetai

The heiress of a corporate conglomerate set her sights on a handsome guy. As she pursued him relentlessly, she thought he didn’t respond to her advances because he was a serious man who lacked experience with women, but then she discovered the surprising truth…?!

"I'll show you how much I really know," as he returned the favor and ravished her with hot passion.

(Source: ChocoLove, translated)