What's Wrong with Secretary Kim?
Complete | Jeong gyeong yun,Kim myeongmi | 2000 released
Our Relationship Is...
Complete | Lee Yun Ji | 2000 released
Have read before. This is so Korean drama in webtoon. The childhood friends turn lover trope with a second male lead that makes love triangle. I do remember it being very one-sided for both leads. It was addicting though didn't particularly like the characters.
Woman's Best Friend