>>22335969
maison book girl used to have a vinyl record whitie edition, dunno if it's still on sale
there's also this website made by some western guy that everyone hates here with several chika groups, it's probably n3 tier (though the main focus is necroma i.e. the n6 group), it's called underground idol or underworld idk something like that
the true n3 wota would use proxies and order on yahoo japan though