Hi readers. I just want to give you a short background on Sunggyu, and why he suddenly appeared in this story.

Sunggyu is, as you have read in the previous chapter, a korean gang leader who only became a leader because his dad was the founder of their gang. Unknown to his father, Sunggyu is biual (in this fic), and so he kept sought for services to fulfill his 'needs' where he met Byunghee. He eventually became one of Byunghee's avid customers - even before he met Seungho. Until Sunggyu fell for Byunghee, and eventually became obsessed with him. When Byunghee noticed Sunggyu's growing obsession over him, Byunghee started to take a step away from Sunggyu, which agitated Sunggyu. From then on, Sunggyu became violent whenever he's with Byunghee. So Byunghee hid from Sunggyu. Sunggyu looked for Byunghee for a year, and it drove him crazy when he didn't find him after a year of searching. And so eventually, he gave up looking for him...

...Until they met in the hospital that faithful day.