18+ Risei wo Sutete, Anata wo Daku.

Passionate career woman Ayame is as good as any man in her field. Although she has suffered through a lot of hardships, her juniors rely on her and every day feels rewarding. One day, she hears a rumors that the son of the company president will take over as acting president in place of his sick father. At night, relaxing with a drink at her favorite bar, she meets Tsubaki, a strangely friendly and frivolous yet undoubtedly alluring man. Drunk on alcohol and the atmosphere, the two spent the night together...

(Source: Bunkasha, translated)