Otokoto Rui is a very strict and big-headed female boss. Although she is good at her job, she makes enemies without realizing it, and becomes the target of her underachieving subordinate Kato. One day, Otokoto is suddenly brainwashed by a smartphone Rui Otozumi at work, and Kato humiliates her anus at his whim. Her desire to "overcome the idea of ​​people with small assholes" drives her out of control...