Arufua No Office Ni Himitsu No Nokoriga (CHOCOLAT BUNKO) [Light Novel]

[Machine Translation] Yuu is the secretary of his brother, the managing director of the giant Kashihara Group. Although she is an Omega, she has perfectly suppressed her sexual arousal with medication and has devoted herself to her brother without a care for his love life. However, she is only attracted to the scent of Koronaka, one of the managing directors. Koronaka is an elusive alpha who seems to invite Yu with a frivolous air, but is charismatic at work. Yuu tries his best to hide his feelings of attraction, but when he visits Koronaka's office, he is hit by the pheromones of Koronaka, who has brought a woman into the office with him, and he goes into heat.

悠は巨大企業樫原グループの常務である兄の秘書を務めている。オメガだが発情を薬で完璧に抑え、恋愛には目もくれず兄に尽くしてきた。だが常務の一人・紘隆の匂いにだけは反応してしまう。紘隆は軽薄そうに悠を誘ったかと思えば、仕事ではカリスマを発揮する掴み所のないアルファだ。惹かれる気持ちを必死で隠していた悠だが、紘隆のオフィスを訪ねた際、女を連れ込んでいた彼のフェロモンにあてられて発情してしまい―。