OTK COLLECTORS (or OTAKU COLLECTORS) is billed as something of a maniac studio though their themes are a bit more sublunary. Fans of real groping on actual trains (not the fake train sets or real trains where actors totally surround the AV star) will be pleased to hear that OTK COLLECTORS' already quite popular Groping Series is now on ZENRA. Although their total output at the moment is small, keep them on your radar as they have some very unique inspirations that they plan to throw cameras on.