Tadoru Yubi

Naoya Hanamura, who works at a major manufacturer, hears that his crush and senior colleague, Sai, is engaged! Just when he's wallowing in heartbreak, Naoya's client, esteemed designer Shuji Takase, appears before him, enamored by Naoya's talent. One thing leads to another, and Shuji steals both Naoya's heart and his body. Naoya is then accepted into Shuji's design studio, where he finds himself becoming attracted to the ill-mannered, bossy and egotistical Shuji. But rumor has it his boss isn't the type to fall in love, and he can't seem to close the distance between them...
(Source: Renta!)
Note: Includes the one-shot "Tonari ni Isasete".