Kimi ni Scenario.

At 37 years old, Yukari decides to start living for herself and give up on falling in love, getting married, or having children. However, seeing the opposing reactions of those around her, she lies to them that she has a partner in a de facto marriage. But that lie is exposed by a junior colleague at work, and they end up in a secret relationship...? After giving up on all things romantic, a potential marriage partner might just show up at her doorstep like a bad script...?

(Source: Akita Shoten, translated)