Throughout my life, after all the changes that I've gone through, only one constant remains. I love Kim Jongdae. 

Baekhyun confesses that he likes the look of yellow t-shirts with jeans and Jongdae pulls out all the stops to get the older to notice him. 

Junmyeon finds himself taking care of a sick Jongdae and everything that can go wrong, does go wrong.

Jongdae needs lube and Chanyeol not so helpfully supplies it   

Baekhyun likes Jongdae. No, Baekhyun loves Jongdae. He has for a very long time but there's a problem. His years of secret pining has led to an unmeasurable amount of jealousy building up within him until one day, it explodes. 

Junmyeon is convinced that romance isn't his forte especially when it involves an over-enthusiastic clumsy giant with a heart of gold and a thousand watt smile 

Baekhyun hates Valentine's Day- or so he claims. He actually hates the fact that he's single while lavish displays of affection are shoved in his face at every corner he turns, every time he blinks. He doesn't expect to have a Valentine's date in the form of his co-worker Kim Jongdae and most definitely, not a boyfriend by the end of the night. 

As idols with demanding careers, Baekhyun and Chanyeol barely have time to indulge in the extravagance of Valentine's Day but through little and simple displays of affection, they manage to make it work. 

Yixing and Jongdae have been living together as the perfect couple for years. Jongdae suddenly starts staying out late and then not coming home altogether. Yixing is too afraid to ask his fiancé for an explanation but that will be his greatest downfall as he'll soon realise he was too late. 

Sehun and Luhan have been childhood friends. Their friendship continues until tragedy strikes and their lives are changed forever. Sehun doesn't give up to find the happiness he's promised Luhan even if it means finding it in another life.