New and... Improved?

Synopsis

Rebecca, who works at a research institute, made a big decision on her 30th birthday. She ventures out in search of change in her life. Shaking off her handsome boss Kent with his protective face, Rebecca gets her start with a stunningly beautiful makeover with the help of her sister. While her colleague invites her on a date, Kent keeps getting in the way with his bitter face for some reason. "Is it just his sense of duty as a boss that keeps him chasing me?" Rebecca finds herself attracted to Kent, but it's rumored that he only has physical relationships with women...!? (Source: Harlequin, translated)

Anime adaptations