Joushi no Atsu ga Tsuyo Sugite Koi ga Dekinai

With a bouquet, wearing suits and cool...woman!? ---Hikaru Kasuga, a poor student, meets Aya Sumino at his new part time job. A sweet talker who loves suits and wears them just as well; she is a woman with masculine appeal. Although just boss and employee, the unusual closeness they share takes Hikaru for a ride from beginning to end as he is unable to keep up with his heart. It can't be romantic... but she's coming on to me! A classic romantic comedy of unset boundaries that'll keep you on the edge of your seat.

(Source: MangaPlaza)