Kaede Sakuma finds herself handcuffed behind her back in a stark, impersonal room, gagged with a ball gag, her chest, thighs, knees, and ankles tightly bound, lying immobile on the floor. Dressed only in her underwear, the fear intensifies when she notices a stranger (Ayaka Hirosaki) similarly clad in just a bra and panties, also desperately trying to free herself from her restraints and ball gag. What is the meaning of this? Why is this happening? They must escape! (240912_03)