My Sweet Demon Boss 

Read Manga My Sweet Demon Boss / 鬼神課長は甘さでできている。 at S2manga.com

All of a sudden, my parents decided to play matchmaker and set me up with another man. I don’t have a boyfriend and I thought it wouldn’t hurt to meet the guy, but it turned out to be my manager, a.k.a. The Demon Boss! Moe is frightened when her parents force her and the Demon Boss to live together on the premise of marriage. But, to her surprise, the manager seems like a totally different person at home…? A sweet slapstick office romance between a Demon Boss and his klutzy subordinate.