Only the Ring Finger Knows Volume 4 (Yaoi Novel)

Studying hard for his exams, Wataru, trying to be accepted into college so he can live with Yuichi in spring. But on the day of his exam, Yuichi decides to leave for New York to be with his old lover for his surgery. Wataru tries to be supportive and sends him off but he can't help himself being insecure. While waiting for his return, Asaka makes a move and offers his kindness to ease his feelings.