The Case Book of Arne

Q.E.D.

Sou
OP11 anime

Quick answer — "Q.E.D." by Sou is the opening theme of The Case Book of Arne.

🎵 Where you've heard it

OP1
The Case Book of Arne (2026)

Frequently Asked Questions

What anime is "Q.E.D." from?

"Q.E.D." by Sou is the opening theme of The Case Book of Arne.

Who sings "Q.E.D."?

"Q.E.D." is performed by Sou.

More songs by Sou

Tada, Kimi no Mama de
Tada, Kimi no Mama de
ZENSHU · ED1