Sehun loves Luhan; Luhan knows but wanted to tease the maknae; Luhan pretends he doesn't know ; Sehun still kept chasing him; Luhan used Xiumin to make Sehun

Donghae is leaving for the military, and Sehun doesn't want him to go. Because what will be left of their complicated and undefined relationship when he returns?    

Six years after breaking up with Kibum - his innocent and pure first love - Donghae still finds himself unable to move on. Nothing seems to make him forget about the past. All this is making him blind - too blind to see why the always-so-sweet Taemin is trying to seduce him and to realise why his dearest dongsaeng Sehun insists on sleeping in his bed...  

Oh Sehun has been secretly admiring the older idol, Lee Donghae, for ages. He had never thought the man would actually share his feelings and fall in love with the clumsy young boy. Will they find love even though the entire world seems to be against them?  A love story describing the ups and downs of their relationship from the start until the very end....