Zettai Kekkonsuru Man vs Zettai Kekkonshinai Woman

Tetsuko is unexpectedly asked to marry Kosuke, a vice president from a business partner, following a one-night encounter. She declines, having no interest in marriage. Despite her resistance, Kosuke begins building relationships with her coworkers and friends, gradually wearing down her resolve. As his influence grows, Tetsuko finds herself surrounded by pressure to accept his proposal. She questions how the situation escalated so quickly and wonders about Kosuke's real motives, beyond his apparent attraction to her.