Chapter 1: Friends? Rivals? Or None Of The Above

"After reuniting in their third year, ex-couple Tetsuro Kuroo and Daishou Suguru quickly picked up their usual rivalry. However, their friends soon grew suspicions, curious about their past relationship, and decided to investigate. Upon discovering what really brought the ex-pair together, they were left to grapple with the complicated and unexpected past of these two rivals.

Yet,

There is more to it than just investigate and observe their past relationship. Both team watched the two people growing and changing as they experience dating and romance across four seasons together. "