A Sudden Rift Between Jiro and Watanabe

In More Than a Married Couple, But Not Lovers Episode 3, Jiro and Watanabe work hard to improve their relationship and raise their couple score in the marriage training program. Determined to reach A rank and switch partners, they begin cooperating more seriously. However, just as their teamwork starts to improve, an unexpected problem creates tension between them. Misunderstandings and emotional conflict threaten the fragile balance they have built.