Her First XXX. Najimi Osana just got fired from her job, and is looking for a new line of work. She accompanies her friend Tsuyuri to a Comiket event and helps her sell Tsuyuri's dōjinshi which primarily consists of rape manga. Najimi becomes curious about the dōjin world after she finds out how much money a popular dōjin creator can make, and even has runs into one such popular artist named Justice, who coincidentally is one of her childhood friends. Najimi proclaims that she will make her fortune through producing dōjin.