this was so awsome to see especially if you just finished watching the drama coz its the reunion and the teachers and students meet for the last time to talk about the show. we get to learn about go nam soon and heung soo more. they also show clips of the previous school dramas since 99 and how stars rose from there like jo in sung, lee dong wook, gong yoo. it was emotional at the very end when they all had to say good bye, tears shed