Favorite OST

• Glow by Keeno (キーノ) ft. Glutamine (ぐるたみん)
• [Original version] Glow by Keeno ft. Hatsune Miku (初音ミク)

Hanabi by Mr.Children

1. Awake (醒) by Juno Su a.k.a. Su Shi Ding (蘇詩丁) [May Contains Spoilers] // Lyrics
2. Enigma (謎) by After Journey (艾福杰尼)

• Somewhere by O3ohn (오존)
• Somewhere (Memory vers. / 메모리 버전) by Hajin (하진)

Tell a Lie by Meego & Primary (프라이머리) // Lyrics

1. Blurry (블러리) by Elli K (엘리케이)
2. Horizon (호라이즌) by Hajin (하진)

lullaby by YU-KA (由薫)

My Sails Are Set {2} by AURORA [1st one May Contains Spoilers]

The Hill of Yearning {2} (그리움의 언덕) by April 2nd (에이프릴 세컨드) // Lyrics

Glass Bridge (하백의 신부) by Savina & Drones (사비나앤드론즈) // Lyrics

Who Are You by Sam Kim (샘김) // Lyrics

Non-fiction by Every Single Day (에브리싱글데이) (Not Official Link)

Run to You {2} by LUCY [First one May Contains Spoilers]

Maze by Yongzoo (용주) // Lyrics

The World (せかい) by Ran

Don't Cry (울지마) by Jang Joong Hyuk (장중혁) (Not Official Link)

Ours {accoustic vers.} (ボクらの足跡) by Good Coming

Subtitle by Official HIGE DANdism (Official髭男dism)

• Träumerei by GANG PARADE
• Nostalgia (ノスタルジア) by Absolute area

Where Are U (내가 너에게 가든 네가 나에게 오든) by Jung Joon Young (정준영) [May Contains Spoilers] // Lyrics

Your Name (그 이름) by Taemin (태민) & Jonghyun (종현) // Lyrics

1. It's You {2} by Henry (헨리) // Lyrics
2. When Night Falls (긴 밤이 오면) by Eddy Kim (에디킴) // Lyrics

(Honestly I think I can add every OST from this drama, I love them so much!)

1. Fire and Water (水火) by The Woods (樹林座)
   
2. Fan Chen {2} (凡塵) by Chu Zige & Xu Liang (崔子格 & 徐良) [2nd one May Contains Spoilers]

1. Tian Ya Ke {2} {1h vers.} {Cast vers.} by Zhang Zhehan & Gong Jun [1st&2nd May Contain Spoilers]
2. Tian Wen {1h vers.} {Cast vers.} {Live vers.} by Liu Yuning
3. Yuan Mie {1h vers.} {Cast vers.} by Shuang Sheng [2nd May Contains Spoilers]
4. Luo Xin {Live vers.} by Ye Li [1st one May Contains Spoilers]

Bonus : Full playlist

For You (너를 위해) by EXO-CBX (엑소 첸백시) [May Contains Spoilers] // Lyrics

The Luckiest Boy {Cast vers.} {3} {Eng vers.} (โชคดีแค่ไหน) by Boy Sompob (บอย สมภพ โภคพูล) [1st&2nd May Contain Spoilers]

Look at by Saltnpaper (솔튼페이퍼) [May Contains Spoilers] // Lyrics

You Are The One by Xiumin (시우민) [May Contains Spoilers] // Lyrics

Before The Sun Sets {2} by Eric Nam (에릭남) [2nd one May Contains Spoilers] // Lyrics

1. Breaking Down {2} by Ailee (에일리) [May Contains Spoilers]
2. Love Sight (널 보면 시간이 멈춰 어느 순간에도) by TXT (투모로우바이투게더) [May Contain Spoilers]

Everything Will Say Goodbye by Jason Zhang (Not Official Link)

1. Done For Me by Punch (Not Official Link)
2. So Long by Paul Kim (폴킴)
3. Lean On My Shoulder by 10cm (Not Official Link)

1. Caramel {MV vers.} by Mosawo [MV vers. May Contains Spoilers]
2. Follow {2} {MV vers.} by Roce [MV vers. May Contains Spoilers]

Memory by Ben (벤) (Not Official Link)

Hunter Heart (獵心) by Shin (信) (Not Official Link)

Dive {2} by Jung Ji Woo (정진우) [May Contains Spoilers] // Lyrics

1. Passion by SunSet Swich (日没のパッ)
2. Heart Beat by Kelun

Heartache by ONE OK ROCK

Be The One {Eng vers} by PANDORA , Beverly (ビバリー)

1. All I do by Roy Kim [May Contains Spoilers] // Lyrics
2. The Story I Couldn't See {Live vers.} by Jannabi [1st one May Contains Spoilers]

Let's Know Each Other Until the End (死ぬまで君を知ろう) by Kobayashi Touya (小林柊矢) // Lyrics

Our Adventure (我們的冒險) by Cao Yin [May Contains Spoilers] // Lyrics

Over the Rain (ひかりの橋) by flumpool (Not Official Link)

Our Way (กลางทาง) by Mek Jirakit Thawornwong (เมฆ จิรกิตติ์ ถาวรวงศ์)

Aquarium by Yu Takahashi [May Contains Spoilers]

HOURGLASS by UVERworld // Lyrics

First Day (朔日) by Kaerinokai (帰りの会) // Lyrics

Mayonaka no Shadow Boy by Hey! Say! JUMP (Not Official Link)

1. Just Friend? by Nanon Korapat Kirdpan
2. Our Song by Nanon Korapat Kirdpan [May Contains Spoilers]

Stand by me {2} by the brilliant green

Just Smile (ได้แค่ยิ้ม) by ISBANKY [May Contains Spoilers]

Kanden by Yonezu Kenshi (米津玄師)

Give me Love by Hey! Say! JUMP (Not Official Link)

1. Where Are You by KATIE (케이티) [May Contains Spoilers] // Lyrics
2. On A Secluded Road {2} (외딴길에서) by Sondia & Kim Junhwi (김준휘) [May Contains Spoilers] // Lyrics
3. That Person {2} (그런 사람) by Han Dong Geun (한동근) [May Contains Spoilers]
   

I'll Be Here by Park Hyung Sik [May Contains Spoilers] // Lyrics

Summer Flower (여름꽃) by Kang Seung Yoon (강승윤) (Not Official Link)

Stay by O.WHEN [May Contains Spoilers] // Lyrics

Be OK by I'Il (아일)

Be Mine by Kaownah [May Contains Spoilers] // Lyrics

Whatever they say {Main Cast vers.} {Patrick Quiroz vers.} by Seth Fedelin

(Note: I didn't put every official links -too many- please check the description box of the first link to see every official version!)

1. Love Song (ラヴソング) by Hitomi Kaji (加治ひとみ)
2. Rainbow Rain by Yumemiru Adolescence
   

Show me by Jill Zimmerman (Not Official Link)

Remember by Dear Cloud (디어클라우드) // Lyrics

Everlasting Sky {2} {movie vers.} by Beverly (ビバリー)

Only One (หนึ่งเดียว) by Pond Naravit Lertratkosum (ปอนด์ ณราวิชญ์ เลิศรัตน์โกมุสภ์) [May Contains Spoiler]

I Will Not Let Go by Paul Ramirez // Lyrics [May Contains Spoilers]

Twins {Lyrics vers.} by Julia Peng (彭佳慧) [1st one May Contains Spoilers]

Regret (후회) by LUVSOME , Jae Lee