its giving literally every type of tokusatsu hero theme ever but its nostalgic so u know what?? I LOVE IT 

This is pretty much the theme of all Tokusatsu heroes, whether it be Kamen Rider, Sentai, Ultraman, or even GARO.

DOA - Eiyuu

Date a live OP

「oath sign」を歌ってみた【グリリ】フェイトゼロ＊OP 

LiSA - Oath Sign (Covered by Guriri) 

Fate/Zero OP