Bukiyou na Hakui no Nugashikata

Kaoru Kuze, a school nurse, was forced to transfer to a countryside high school due to being relentlessly stalked by a co-worker. His first day starts out rough when he walks into his new office, only to be greeted by Motoaki Wakura, a tall, blonde guy who looks like he belongs in a gang...! Kaoru soon learns that this scary-looking guy is in fact very caring and dependable. When Kaoru falls asleep in his office one day, he's shocked to find Motoaki beside him when he wakes up, with a flirtatious look on his face...

(Source: Renta!)