you were in an accident when you were on a plane and it crashed and you drowned in the river

luckily you were wearing a life jacket and you tried to swim to find a place to rest, then you saw a big island and you swam and went there

You reach the island and you open your life jacket, suddenly the tall man walks towards you and says

"...? Who are you? Where are you from?" Said the man, he is Hyunjae