About the 3min &amp; 6 sec SPECIAL TRACK

Donghae spent 6mths learning to write a 3min song for Eunhyuk &amp; another 6yrs to give it to him.#은혁 #EUNHYUK
#슈퍼주니어DnE #SuperJuniorDnE
#EXPLORER
#신인가수_은혁_EXPLORER