"Iron Lady", Sawatari Yoriko, is a tireless hard worker with a strong planning ability who has lived her whole life completing goals she's set out. Just when she thought she was about to reach her goal of marriage, she was suddenly dumped by her lover of 3 years and told, "You don't suit marriage".

Feeling heartbroken, Yoriko decided to prove that she is "someone who can get married" and began to chart out a "marriage plan". Though she's set out on her plan and started her marriage hunting activities, she's only been met with failures... In the midst of that, that's when she met Yuuki Keishi, a light-hearted and hard to grasp esthetician.

This is the start of a love battle between a woman who's indifferent towards romance and a very mysterious and slightly flirtatious man♡

source: https://www.mangaupdates.com/series/yajziox/kekkon-wa-hakaba-ka-goal-ka-romance-ka