You Have Me (你是我所有) - Liu Yuning (刘宇宁)《Love Scenery OST》《良辰美景好时光》

Please feel at ease Mr Ling's 6th track. 
[The Last Self] by Wang Ye & Yusee

[The Last Self] by Wang Ye & Yusee (Please feel at ease Mr Ling)

Unforgettable Love's 2nd track.
[Obviously Like You] by Miles Wei

[Obviously Like You] by Miles Wei (Unforgettable Love)

Fireworks and Stars (烟火星辰）- Liu Yuning (刘宇宁) of Modern Brothers (摩登兄弟) -  (You Are My Glory OST )

Forever Shine For Me/So I Love You Very Much (Crush OST) - Lin Yanjun (林彦俊)

This song originally sang by Kim Yoe Hee, but I used Lee Joon version to cover the song from original soundtrack K-Drama Jungle Fish II with english lyrics.

Lyrics of Feeling Sad English Version:

What made us suffer so much like this?
What puts us into obstacles
What made us suffer so much like this?
What puts us into obstacles

“I love you,” the words I won’t be able
“I love you,” the words I can’t say anymore
“I love you,” the words I can’t say as I look towards you
I love you, I love you, I love you, I love you

What made us suffer so much like this?
What puts us into obstacles
What made us suffer so much like this?
What puts us into obstacles

Why didn’t I understand you?
You must have been lonely and you hurt
Listen to a lot of things I wanted to say, but I couldn’t

“I love you,” the words I won’t be able
“I love you,” the words I can’t say anymore
“I love you,” the words I can’t say as I look towards you
I love you, I love you, I love you, I love you

“I love you,” the words I won’t be able
“I love you,” the words I can’t say anymore
“I love you,” the words I can’t say as I look towards you
I love you, I love you, I love you, I love you…
 

Lee Joon - Feeling Sad Eng Vers (Cover By Bery)

Hua Zhou (花粥) - Ye Wen (夜問) Perfect and Casual OST《完美先生和差不多小姐》

Lee Joon - Feeling Sad Eng Vers (Cover By Bery)

Denny Beryan