is this some kind of experimental footage...? a strange space where medical instruments are displayed on the walls, and examination tables and restraints are placed. what is the purpose of the two men wearing surgical gowns...? another girl is brought to this laboratory. sensitivity checks using all kinds of instruments such as mouth gags, Cusco, and piston machines begin again. "what kind of reaction will she have if i put this in?" the girl is even used as a toy by the perverted men... while her consciousness is hazy, mouse-chan resists slightly. she is scolded for making a mess of the room with the unstoppable saliva from her mouth... what kind of experiment is being conducted in this room? the actions of the men who record the experiment on camera and enjoy it are beyond the pale. is this also a kind of dark job? if the men were doing this at the request of someone, the darkness of this country is deep. is there anyone who can be excited by watching this video? today, somewhere, a defenseless mouse-chan is being experimented on, experimented on, experimented on...