Keiyaku shite yo, Sumi-senpai

"The real me is far from being perfect."

Kyouhei Sumi, a 27-year-old PR specialist for the women's accessory brand LUA, is admired by colleagues for his charm and professionalism—earning him the nickname of the "perfect man." However, Sumi actually suffers from extreme stage fright and has been relying on medication to cope with his daily responsibilities. His only comfort is his cheerful junior, Emi Yasaka, who supports and looks up to him.

Sumi thinks he could continue hiding "the real him" from others, until one day he is asked to be the chief of a new project at the company. Will this opportunity ruin all Sumi's effort in building his image of a perfect man?