Got it from PandaBaek!

Open your library (iTunes, Youtube Playlist, Media Player, iPod, etc.) Put it on shuffle. Press play. For every question, type the song that's playing.

Opening Credits: Beautiful Life (MYNAME)
Waking Up: No One (F.Cuz)
First Day at School: Punch, Drunk, Love (SHINee)
Making Your New Best Friend: No more dream (BTS)
Falling in Love: Be the light (Block B)
Breaking Up: Very Good (Block B)(Hahahahahaha need to laugh so hard right now xD omfg).
Prom: Replay (MYNAME)
Graduation: XOXO (EXOM)
Death of a Close Friend: History (EXOM)(Omfg... ^^")
Life's Okay: Let out the beast (EXO)(My shuffle not being shuffly enough O_O)
Mental Breakdown: Read between the lines (MYNAME)
Driving: N.O. (BTS)
Flashback: Janus (F.Cuz)
Getting Back Together: Lucky (EXOM)
Wedding Scene: Hello and Goodbye (MYNAME)
Car Accident: Why so serious? (SHINee)(LOL)
Final Battle: Black Pearl (EXOM)
Death Scene: Top that (U-Kiss)(....)
Funeral Song: Baby I'm sorry (B1A4)
Final Credits: Doom Da Da (TOP)
Deleted Scenes: Nightmare (SHINee)

Omfg.. some songs :') And my shuffle isn't shuffly enough :') I had so much more groups in there :c