Kyou mo Futago ni Semararetemasu

Ayato Saeki has been recently transferred to the middle of rural nowhere to oversee his company's new service. He could never have predicted what his transfer would entail... Ayato is greeted by two familiar faces, Hinata and Shizuki Azuma, upon arrival. How Ayato didn't notice the twins he grew up with were his boss's sons is a mystery for another day. Right now, the matter in hand would be: "being the twins' lover" was not in the job description! After ten years apart, a sudden confession of love and from twins no less! What is Ayato to do!?

(Source: Fantasista Inc.)