Under Hollow

"ある作曲家が夢に見た地下空洞のイメージをそのまま曲にしたもの"
Under Hollow is a musical piece composed by Ko Hayashi that is used in Brave Frontier. It is also the sixth song in Disc 4 of the Brave Frontier II Original Soundtrack.
==Appearances==
"Under Hollow" serves as the Quest selection theme in the following maps:
* Underground Sertavia
* Avulhein