My Beloved Senpai Was a Dangerous Playboy

At the café, everyone admires the reliable senior Hazuki Soma. He's kind to everyone and attentive, but one day you happen to witness his decadent, free-spirited adult side hidden behind that facade. "Since you saw it, what shall we do about it, just the two of us?" -- Sharing this secret becomes the catalyst for him to pursue you with a cool yet sweet side he never shows at work, and a dangerous game of give-and-take begins.