We Can't Do Just Plain Love, Volume 3: She's Got a Fetish, Her Boss Has Low Self-Esteem Volume 3 (manga)

Devoted office worker Sakura Yuino has been transferred to work under a new supervisor: the handsome, gentlemanly Tatsuki Kiritani. From the outside, the two of them seem very put-together — but they’re both hiding troublesome personal issues. Sakura has a scent fetish, and Tatsuki can’t be around women without… getting aroused. To help him out, dedicated subordinate Sakura proposes “special training” to help Tatsuki get over his issues with women (bonus: she can indulge her scent kink). What could possibly go wrong?