Oni Joushi Gokudera-san wa Abakaretai.

Shouji's new boss is a merciless beast. He might be great for the bottom line, but he's definitely done a number on Shouji's work-life balance - and his love life! One fateful weekend, Shouji sees his fearsome boss, Mr. Gokudera, in the flesh, coming out of a women's lingerie store. Recently heartbroken, Shouji thinks it's unfair that his boss gets to have a girlfriend - but is all that lingerie really for someone else?
(Source: Futekiya)