Stalker wo Gekitai shite Kureta Akogare no Hito wa, Motto Yabai Stalker Datta

Mihane Kirino is just your average office girl who's set on finding love... she just has a couple odd things here and there like someone stalking her. One day, one of the charming higher ups in the office, Kai Yamashina offers to take her out for food and listen to her woes. In the blink of an eye things go from attentive boss to pretend boyfriend and/or personal body guard, and he doesn't seem to care to hide it!

(Source: MangaPlaza)