Because of her plain appearance, she rarely has the chance to have sex and can only indulge in perverted fantasies. This big-breasted girl, まここ, is as timid on the inside as she appears on the outside, always seeming hesitant. Her job is also mundane; she works at a library and has had sexual experience with only one man… However, she constantly harbors the desire to be treated roughly by a man. She accidentally discovers a ‘perverted circle’ on social media. She decides to expose her plain fetish and document her lewd transformation.
