Mihoshi testing new handcuffs part 3

Part 1
Part 2

And the final part of this little series, Kiyone has taken advantage of the situation by stashing Mishoshi in a corner and then gagging her with a new prototype gag. This gag uses the same self-tightening material found here Kiyone testing new handcuffs and also features an insert into the mouth which hardens into a ball when the strap is activated. This leaves Mihoshi left with nothing to do except hope that the battery life on these prototypes isn't long.