One of them has to be pure. Which one is it /a/?
Greedy Tits got raped already, so we can rule her out.
Bass players are always pure.
The chubby one with the big tits obviously. Since Japan will always friendzone them in every plot.
Sonico of course.
The bimbo one obivously took a couple of dicks to get her drums in the first place, the leader sucked a couple of dicks to pay for studio time, and the oppai cow doesn't even know what a cock is.
They're also usually rape victims, so not really.