Tsukishima and Yun had a long-distance relationship after they both started university in different cities, little by little they began to distance themselves, calls and messages became less frequent to the point that they were only once a week.

Kei sighed as he was on the train on his way to Tokyo to visit his girlfriend. As soon as he arrived he saw Yun in a restaurant with another boy. He addressed them and spoke once he was in front of them.

—"Do I interrupt something?"—