Classroom☆Crisis

Cobalt

TrySail
OP11 anime

Quick answer — "Cobalt" by TrySail is the opening theme of Classroom☆Crisis.

🎵 Where you've heard it

OP1
Classroom☆Crisis (2015)

Frequently Asked Questions

What anime is "Cobalt" from?

"Cobalt" by TrySail is the opening theme of Classroom☆Crisis.

Who sings "Cobalt"?

"Cobalt" is performed by TrySail.