It can be called the red string of fate, the warm and positive, bright red color can be seen as humanity's physical needs and will to survive. The energy and confidence shines out of the bright red color, it awakens humanity's physical life force. There is a strong passion coming from the color but there are also negative emotions hidden behind it. 

"Riddle me this."I challenge, smirk well hidden behind my lychee flavoured  shaved ice cone.

Baekhyun doesn't know what he did to make fate hate him this much.  But as hard as he tries, he can't seem to shake off his soulmate.  Red string of fate AU.