-[PROTEASE]- | 13 Sentinels Aegis Rim 

X2

its a new track for the branched album. Same with the Inaba Miyuki track.

Basiscape (made music and other sound in 13 sentinels) made new track and remix of music of 13 sentinels for new album. That's why you can't listen this in the game. But you can search and buy the album "13 Sentinels: Aegis Rim Remix & Arrange Album -The Branched-"

These tracks are so good just as the original game’s godlike ost was thank you for letting me know about it