Is the OP song "Fiction" also used in other anime?

Thyriad-oPPailov said:
I am sure I heard something like this part with:
"hirari hirari mekuri mekuru sutourii sutourii kido airaku isogashii"
somewhere else, it was either girl voice or multiple people singing not a man like in this anime, the music was same I think..

Thyriad-oPPailov said:
I am sure I heard something like this part with:
"hirari hirari mekuri mekuru sutourii sutourii kido airaku isogashii"
somewhere else, it was either girl voice or multiple people singing not a man like in this anime, the music was same I think..

Gran_Air said:

I don’t know if this helps but I’m pretty sure they also do the second op for “ A couple of cuckoos”

Thyriad-oPPailov said:
I am sure I heard something like this part with:
"hirari hirari mekuri mekuru sutourii sutourii kido airaku isogashii"
somewhere else, it was either girl voice or multiple people singing not a man like in this anime, the music was same I think..