User blog comment:HollowIchigo58/High School DxD Season 4 Announced/@comment-27083298-20161026225904/@comment-90.202.240.151-20161027015429

Heres some songs that could be suitable as the opening song:

Totalfat-Walls

Unveil Raze-The Pheonix Begins

Crossfaith-Devils Party

One OK Rock-The Way Back

Second Wall-Koi no Owari ni, Sakura Maichiru

Coldrain-The Story

The Winking Owl-Bloom