2nd couples that were total spotlight stealers

Kyubin and Seungtaek is the 2nd couple in the manhwa but their story is more profound and was given the first chapters in the series which does not usually happen in a normal set-up. I love how they compromise each other.

The uke of the 2nd couple happened to be a caller to the program where the ML is broadcasting (main couple). This is usually where gay individuals tell their personal experiences about love. The 2nd couple's part of the series is from chapters 63 onward