Maybe because Kris is just hot-tempered,

D.O was the son of the Do couple that owned the biggest gold mining company in Korea. However, even though he got everything he desired, D.O still hated his life very much. To him, home was the most boring place in the world. With his father giving him constant presure, D.O could withstand it no more. He planned to escape from home but was chased by his father's underlings. With them chasing him, D.O had no other choice than to hid