The background:  So, a few months ago I posted about making K-pop mix CDs with stories attached.  My first one was "Descent Into Monster."  As I made more, though, that one kept bugging me.  Since it had begun as an EXO mix rather than a general K-pop mix, it was very unbalanced.  I therefore eventually went back and turned the 31-song 2-disc mix into a single 20-song mix.  But then this left a lot of songs from the first mix unused.  I thought I'd just incorporate them elsewhere, but I found myself to instead continue the saga until I'd used every song and finished the story.  As part of it, I tried to also reincorporate more of the same artists to give each an appropriate feel, though there was a limit to how possible this was.
Anyway, here it is -- the complete saga:
Descent Into Monster
MC spends his time doing drugs (
Dope) until he overdoses, whereupon he finally seeks medical attention (
Overdose).  Now clean, he finds that he’s a loser (
Loner) with mommy issues (
Mama).
MC spots a woman and falls in love (
Beautiful).  Though he knows he’s not good enough for her (
Mr. Simple) he asks her out (
CALL ME BABY) and to his astonishment, she accepts (
Take You Home).  For the first time in his life, he’s happy (
Ring Ding Dong).
But things start to go wrong (
Dramarama) and she breaks up with him (
HURT).  He can’t handle this and begins going crazy (
Psycho), finally becoming a monster (
Monster).
A former soldier recognizes what is going on (
Skydive) and takes it upon himself to solve the situation.  He ambushes MC (
BOOM).  They fight (
Shoot Out), and MC retreats (
Run Away).  Soldier gives chase (
Follow).
Soldier sees he has one shot at victory, but it'll cost him his life (
One Shot).  He decides to sacrifice himself to end MC's evil (
Before the Dawn).
Rise Into Twilight
Against all odds, Soldier survives (
Blue Flame).  He celebrates (
DamDaDi) only to be interrupted by a flash of monstrous madness (
Growl).  He tells himself it was nothing (
Bounce).
Soldier goes to tell his girlfriend (
Love) about his victory (
Cherry).  But as he does, the madness comes on him again (
Crush My Mind), and he can’t stop himself (
Badman) from killing her with his new, monstrous strength (
Black Pearl).
He is horrified at what he’s become (
Dangerous), and must come to terms with the truth (
Like Rain Like Music): his victory (
Lost) turned him into a monster (
Alligator).
He tries to blow himself up (
Bomb), but that only serves to unleash the madness again (
Let Out the Beast).  When he comes to himself, he despairs (
Rainfall).  He doesn’t understand—until night falls (
Twilight), and his full powers emerge (
Wolf).  Then it finally clicks (
Tick Tack).  He survived not because MC made him a monster, but because necessity unleashed his innate powers (
Dracula).
Battle Against Night
Honorable (
Last Romeo), Soldier swears he will never kill another innocent (
Ghost).  He will rise above his monstrousness (
Rise) and hunt his own kind (
N.O).
In his search (
Under Cover), he finds a woman weeping (
Lonely) as she feasts on human flesh (
Mirotic).  Soldier wonders whether she regrets being a monster (
Winter Butterfly) and approaches her.  She attacks him, but instead of dying, he unlocks a new level of power (
Valkyrie).
She escapes, and he sets off on a rampage (
Obsession).  But the more monsters he kills, the more he leaches away his sanity and humanity (
Lost in the Dream).
One day, when he’s knee-deep in blood, he realizes what he’s become. He falls to his knees, seeming weak.  At that moment, Mirotic, who’s been stalking him, makes her move (
Dun Dun).  Soldier realizes immediately what she is about and swears to take her down with him (
Good Luck).
The game begins (
Hide & Seek), with each determined to kill the other (
Answer).  They fight with no clear victor (
Stuck).  They are such equals, this feels almost like friendship (
Maze of Memories).
Finally, Soldier surrenders, kneeling down.  Mirotic springs forward to kill him (
Shine). He smiles and she realizes her mistake, but it’s too late for her (
Memory).
Soldier has won and is alive to continue battling. Forever (
Fate).
Triumph Over Fate
Soldier has never slacked, never failed to continue fighting monsters (
Depend On Me).  Whenever it looks like he’s going to lose, he becomes yet more powerful (
Level Up).  He’s gained quite a reputation (
Jealous), which only increases his difficulties (
Double Knot).  He wonders if he will ever be able to rest (
Edge).
Then a strange woman approaches him (
Girl Problems) telling him she has a solution—a place he can be at peace (
Treasure).  But he must first defeat the king of monsters, to stop the influx of new monsters (
Cactus).  Soldier says she didn’t need to bribe him; he’ll do his duty (
On).  And yet, he desperately wants to believe he can be helped (
Secret Night).
Soldier heads out to defeat the Monster King (
Exodus), though his mind is constantly distracted by the woman’s promise (
Baby Don’t Stop).  He stumbles while fighting (
Trespass), and wonders if she meant to make him vulnerable through distraction (
Manipulate).  Although devastated (
Thought I Loved You), he fights even harder (
Illusion) and defeats the Monster King (
Bonamana).
The woman reappears to fulfill her promise (
Na Hago Nolja).  He says he knows she’s lying (
Experience), but as he speaks, his monstrousness fades, though his power remains.  He can now live whatever life he wants (
Love Shot).
Track Listing: You can listen to the entirety on YouTube HERE.  YouTube has more of the songs than Spotify, but I couldn't find TVXQ!'s "Manipulate" there, and that song is available on Spotify.  
Descent Into Monster:
1.     Dope – BTS
2.     Overdose – EXO-K
3.     Loner – CNBlue
4.     Mama – EXO-K
5.     Beautiful – Baekyhun
6.     Mr. Simple – Super Junior
7.     CALL ME BABY – EXO
8.     Take You Home – Baekhyun
9.     Ring Ding Dong – SHINee
10.  Dramarama – Monsta X
11.  HURT – EXO
12.  Psycho – Baekhyun
13.  Monster – EXO
14.  Skydive – B.A.P.
15.  BOOM – NCT Dream
16.  Shoot Out – MonstaX
17.  Run Away – TXT
18.  Follow – Monsta X
19.  One Shot – B.A.P.
20.  BTD (Before the Dawn) – Infinite
Rise Into Twilight
1.     Blue Flame – Astro
2.     DamDaDi – Golden Child
3.     Growl – EXO
4.     Bounce – Boyfriend
5.     Love – Taemin
6.     Cherry – Nu’est
7.     Crush My Mind – VIXX 
8.     Badman – B.A.P.
9.     Black Pearl – EXO
10.  Dangerous – X-5
11.  Like Rain Like Music – Baekhyun
12.  Lost – History
13.  Alligator – Monsta X
14.  Bomb – Ravi
15.  Let Out the Beast – EXO
16.  Rainfall – Chen
17.  Twilight – Oneus
18.  Wolf – EXO 
19.  Tick Tack – U-Kiss
20.  Dracula – f(x)
Battle Against Night
1.     Last Romeo – Infinite
2.     Ghost – History
3.     Rise – Taemin
4.     N.O – BTS
5.     Under Cover – A.C.E.
6.     Lonely – Spica
7.     Mirotic – TVXQ!
8.     Winter Butterfly – Hyuk
9.     Valkyrie – Oneus
10.  Obsession – EXO 
11.  Lost in the Dream – Monsta X
12.  Dun Dun – Everglow
13.  Good Luck -- Beast
14.  Hide & Seek – TVXQ!
15.  Answer – Ateez
16.  Stuck – Monsta X
17.  Maze of Memories – Stray Kids
18.  Shine – J-Min
19.  Memory – VIXX
20.  Fate – Paradise
Triumph Over Fate
1.     Depend On Me – VIXX
2.     Level Up – Oneus
3.     Jealous – TVXQ!
4.     Double Knot – Stray Kids
5.     가장자리 (Edge/ The Family Head) – N
6.     Girl Problems – EXO CBX
7.     Treasure – Ateez
8.     Cactus – A.C.E.
9.     On – BTS
10.  Secret Night – VIXX
11.  Exodus – EXO
12.  Baby Don’t Stop – NCT
13.  Trespass – Monsta X
14.  Manipulate – TVXQ!
15.  사랑했지만 (Thought I Loved You) – Chen
16.  Illusion – Ateez
17.  Bonamana – Super Junior
18.  Na Hago Nolja – Cross Gene
19.  Experience – Taemin
20.  Love Shot – EXO