This is a story between a mute protagonist and a number of female protagonists after the end of the world. Originally, girls are naturally weaker than boys in terms of physical strength, if they are handcuffed with both hands, or back cuffed, then she will really have no power to resist at all. "Whatever, the big deal is to be a slave, it's not like I haven't YYed myself!" Su Miao was also ruthless, and then closed the bayonet, handcuffed both hands, she felt that her heart was already about to jump out of her throat, after all, it was her first time to use handcuffs in front of outsiders.

Coming to the entrance of the school, students were now going in one by one, except for the freshmen who were left alone, the girls of all the other grades would be uniformly taken inside a small room, and when they came out, they would be in uniform bondage, one type of bondage for each grade. Freshman year was unregulated, sophomore year was now the standard five flowers, of course, this was the base, and it wasn't a problem to ask for some additions on top of the base yourself, and junior year's was Kamehameha and Japanese style. As for the seniors, they were the worst, backhanded kanji, kamehameha, knee restraints, leg irons, and even a collar

For example, the handcuffs and shackles on Xiaoling's body are not key-controlled, but unlocked by intelligent information. At the designated place, there is an automatically recognized QR code on the handcuffs, which can be opened directly by scanning it at the place where there is a fixed machine. After Siau Ling stretched her hands to the machine at the door, the machine automatically scanned the mini QR code, and the handcuffs on Siau Ling's hands were automatically opened, and then the handcuffs were magnetically attached directly to the machine. Siau Ling wants to put on again, just need to put both hands in, and then gently press down, the handcuffs will be re-locked.