So this is my first time ever doing something anime related, but MAN do I like this opening. The show is really good too; It's made by the same folks that makes One Punch Man! Definitely check it out if you're not familiar
I enlisted the help of my buddy Adrisaurus for the vocal part - She really nailed this one! Definitely check out her channel if you haven't already!
I also enlisted the help of some friends and fans on social media for the gang chant vocals, you can see a detailed list for these awesome folks at the bottom of the description.