It’s Okay to Not Be Okay OST Part.1 - Heize

01. You're Cold
02. You're Cold (Inst.)

It's Okay to Not Be Okay OST Part.2 - Sam Kim

01. Breath
02. Breath (Inst.)

It's Okay to Not Be Okay OST Part.3 - Park Won

01. My Tale
02. My Tale (Inst.)

It's Okay to Not Be Okay OST Part.4 - Lee Soo Hyun

01. In Your Time
02. In Your Time (Inst.)

It's Okay to Not Be Okay OST Part.5 - Kim Feel

01. Hallelujah
02. Hallelujah (Inst.)

It's Okay to Not Be Okay OST Part.6 - CHEEZE

01. Little by Little
02. Little by Little (Inst.)

It's Okay to Not Be Okay OST Part.7 - YONGZOO

01. Puzzle
02. Puzzle (Inst.)

It's Okay to Not Be Okay OST Special Track vol.1 - Various Artists

01. Wake Up - Elaine
02. Got You - Ga Eun
03. Your Day - Kim Ki Won feat. Kim Bom
04. Wake Up (Inst.) - Elaine
05. Got You (Inst.) - Ga Eun
06. Your Day (Inst.) - Kim Ki Won feat. Kim Bom

It's Okay to Not Be Okay OST Special Track vol.2 - Janet Suhh

01. In Silence
02. I'm Your Psycho
03. Lighting Up Your World
04. In Silence (Inst.)
05. I'm Your Psycho (Inst.)
06. Lighting Up Your World (Inst.)

It’s Okay to Not Be Okay OST - Various Artists

CD 1
01. Sketch Book (It's Okay to Not Be Okay Opening Title) - Janet Suhh
02. You're Cold - Heize
03. Breath - Sam Kim
04. My Tale - Park Won
05. In Your Time - Lee Soo Hyun
06. Hallelujah - Kim Feel
07. Little by Little - CHEEZE
08. Puzzle - Yongzoo
09. Wake Up - Elaine
10. Got You - Ga Eun
11. Your Day - Kim Ki Won feat. Kim Bom
12. In Silence - Janet Suhh
13. I'm Your Psycho - Janet Suhh
14. Lighting Up Your World - Janet Suhh
15. Quelemente - Lee Jong Soo, Na Byung Soo
16. Song for Election (Symbol No. 1 Kwon Man Soo) - Funny J
CD 2
01. Sew Your Heart - Kim Kyung Hee
02. Brother (Kang Tae, Sang Tae's Theme) - Nam Hye Seung, Park Sang Hee
03. Her World (Moon Young's Theme) - Nam Hye Seung, Park Sang Hee
04. Destiny is Nothing - Nam Hye Seung, Park Sang Hee
05. Kang Tae & Jae Soo's Speed Instinct - Kim Kyung Hee
06. Facing the Fate - Nam Hye Seung, Park Sang Hee
07. River of Loneliness (Kang Tae's Theme) - Nam Hye Seung, Park Sang Hee
08. On The Road, Left Alone - Nam Hye Seung, Park Sang Hee
09. Through The Dark Tunnel of Time - Nam Hye Seung, Park Sang Hee
10. Their Own World - Lee So Young
11. It's Okay - Nam Hye Seung, Go Eun Jung
12. Woorunggakshi - Nam Hye Seung, Go Eun Jung
13. Rooftop March (Chopsticks Variation) - Nam Hye Seung, Park Sang Hee
14. Butterfly (Do Hee Jae's Theme) - Nam Hye Seung, Park Sang Hee
15. Jae Soo and Alberto - Nam Hye Seung, Jun Jung Hoon
16. A Hidden Heart - Lee So Young
17. Bluebeard - Nam Hye Seung, Jeon Junghoon
18. The Dusk of The City - Lee So Young
19. For Joo Ri (Fur Elise Variation) - Nam Hye Seung, Park Sang Hee
20. Publishing Company Sang Sang Lee Sang - Nam Hye Seung, Park Sang Hee