Neck

 
KA-1
Katsuhiro Akihama
Choker-B 
 
KA-4
Katsuhiro Akihama
Necklace-A
 
KK-3
Keiwa Kobayashi
Necklace
“SOMNIUM“ type-20
 
KK-4
Keiwa Kobayashi 
Necklace
“ φ“ type-4
 
 
EU-5
Eriko Unno
Choker
 
 
EU-2
Eriko Unno
Necklace
 
 
EU-7
Eriko Unno
Choker
 
 
KS-1
Kaoru Suwa
Necklace