Midarana Onzoushi ni Mede Rare Chau

Monaka Yukimura is a new employee at a long-established kimono store. When he arrives at work full of enthusiasm, he comes across a man and a woman making out! And the man is the company president's son! Monaka panics and worries that she's come to a dangerous workplace, but... The heir of a long-established kimono store who is careless with women falls in love for the first time in his life with an unconventional new employee! (Source: Kodansha, translated)