Yokozuna, My Childhood Friend, My Love!

Personality, education, status, money... Everything about him was perfect! Ayako Makuuchi, an up-and-coming office worker in Tokyo, has put her shameful past behind her and now struggles to become one of life's "winners". She's set her sights on Nagata, a senior colleague and her ideal man, and as the distance between them decreases day by day, she seems well on the way to a blissful wedded life... or so she thinks. Enter her childhood friend Eiji, who knows her dark secret and somehow ends up crashing at her place in the city...?!

(Source: MangaPlaza)