Song in episodes 152 and 158 smile again dong hae

I'm watching everything with 지창욱 starting with the earliest I can find. Smile Again Dong Hae, the last episode to go... I want to know the name of the song in those two episodes. I've looked everywhere to find it, no one in Reddit seems to know. So I've sent a minute of it to a Korean friend to ask for a translation and to ask if he knows. In the meantime I'm asking all of you, what is that song where can I find the lyrics. Thank you.