Anytime someone insults or degrades the Sun-Woo Clan he has shown rage and anger, to those that disrespects them.
I saw this and I start to think about it for bit. Then something hit me that Shi Woon new attitude kind remind me Elder Kwon a bit. Elder Kwon take very huge pride in been member of Sun Woo clan and has shown great loyalty toward those he consider friends. Shi Woon has always shown loyalty to his friend to the point putting himself in danger but pride in himself wasn't part in The Breaker series and in most of The Breaker New Wave. He was always the shy, cowardly and awkward kid who got bully. Now Shi Woon has pride, confidence, and strength is something that Shi Woon has slowly be developing over the course of the series. Now the only thing left is for him to finally notice how Sera and Jinni feel about him and pick one beauty who have the hottes for him lol
Sorry I got tad long wind here