Nothing Serious (2021) on Netflix

Plot summary

Woo-ri is a novice reporter at a magazine, and the column he is handed covers sex and dating, though what he would rather write is fiction. He dislikes his own company, and affairs of the heart have never gone smoothly for him. Ja-young, bold in manner, intends to be a mature woman of thirty, but failures have accumulated and debts hang over her. A boyfriend walks out after a single month, so she announces that she is finished with dating. Both find loneliness hard to bear, and each of them turns to an app where strangers are matched, which is how they come to meet.