https://youtu.be/F6yVam_cOic Here's the link to the original owner of this cover. 

The music itself comes from a game called BLACKSOULS, first song is from the first and second game, while the second song is from BLACKSOULS II if I remember correctly.

All credits to the original creators.

Black Souls II [ Piano Cover ] - Lindamae Theme & Betrayal Alice

Black Souls 2 Soundtrack - Mabel, Girl of Nihility

i cant found this song anywhere

fine, i'll do it myself

GUMI 裏切りアリス  Betrayal Alice

Black Souls 2 OST - Jabberwocky (Update Patch Ver.) (320 kbps).mp3

BLACK SOULS II OST Piano

Black Souls 2 - Lorde Returns ~ Prince of Hell Fear Despair [Version 2]

Black Souls 2 - Duchess Margaret of Tyrol

BLACKSOULS 2 Post-Patch OST - Red Idol Prickett

Black Souls 2 OST - Node's Confession

Black Souls 2 OST - Queen Of Hearts Lorina

Nathan Sykes | Over And Over Again,  Slower Ballad Piano

Black Souls II [ Piano Cover ] - Lindamae Theme & Betrayal Alice

R4N01