An engagement ring is worn on the index finger.

[BL Work] Yoshino Shinya (吉野真也), who had left his hometown and was working in Kobe, was considering marriage with his girlfriend of two years, Okada Mari (岡田真理). Prioritizing his girlfriend's preferences over surprises, he decided to have an engagement ring made at a shop his girlfriend had found in a magazine. He had promised that his formal proposal would come when he gave her the ring—but that was one week before he was supposed to give it to her. One week before the scheduled ring exchange, Shinya witnessed his girlfriend disappearing into a hotel with a man whose face he recognized. In rainy Kobe, as Shinya sat collapsed on the street in a drunken stupor, an umbrella was held out to him. "You're soaked through, aren't you?" A soft smile and a low voice. That man was the same one who had disappeared into a hotel with his girlfriend last week...