Lee Taemin made a promise to Choi Minho long ago, before they even started going out. Taemin, the younger, was aware of Minho’s feelings for him. He was aware of the tender love the older held glowing within his chest. And Taemin loved Minho enough to bend his own uality and give the older a chance. 

Once their feelings grew even stronger for each other, a physical distance was driven between them due to their families moving apart. 

But that promise was still being kept;

“Minho hyung, I promise that I will give my first kiss to you.”

They were only best friends at that time.