Douse Mou Nigerarenai

Naho dreamt to become an OL but while she was waiting to have the aptitude to become one of them, she started to work in a Design company. But because her manager, Sakisaka, had a bad impression about her, he just played with her. But then, he decided to help her and he even comforted her?!

(Source: Chibi Manga)

Included one-shot:
Volume 10: Heart Breaking, Hard Trip