Min-ho was a big who was born and spent his childhood in a place called (sil -cheon) meaning nature a place which was separated from the rest of the world because of what they believe ,say the mordren world was not what is use to be ., thinking the only way to avoid the disease what to stay in sil-cheon . But one day they were attack being cut out from the world , they were meant to fend for themselves.not being able to defend themselves and at that process many live were lost including his parents.whlie the survivers were taken out of sil -cheon to see what the world is really about.