【グラブル】Granblue Fantasy OST - The Wolf Inside Me (Eustace’s theme ユーステスのBGM)

Composer: Tsutomu Narita The theme song of Eustace. The name is temporary until Cygames said otherwise. I still don’t know who’s the vocalist, but possible still Kobayashi Taro as always. All rights belong to Cygames.