Pure Love of a Man

"Nice to meet you. I am Kang Hajin, and starting today, I will be serving as the Head of the Overseas Sales Department."
The man she thought she would never see again after a one-night stand with her first love ten years ago had reappeared as the one in control.
"You absolutely cannot date me, and I don't have the confidence to treat you merely as a subordinate."
"Then there is only one answer. We have no choice but to be partners."
Watching the corners of Hajin's eyes curve softly, Jihye instinctively knew. That, after ten years, a massive ordeal named 'Kang Hajin' had once again intruded into her life.

Original Webtoon:
KakaoPage, Daum

Official Translations:
Japanese