The story begins with the protagonist Saki, a freshman high school student looking to become more involved in school life after feeling left out and alone. She asks her mother to help give her a makeover, and low and behold Saki becomes a stunning young girl. She soon makes friends and begins to hang out with them, until one day she runs into a young man named Hayato. They soon after they meet, Saki and Hayato have drug induced sex at a karaoke bar. They do this several more times over the next few days at various locations. Then, in class, Saki feels bad that she isn't as wealthy as the other girls who have expensive trifles. However, one of her friends informs her of a escort job that she takes. She goes to dinner with her first client who is a much older man, who afterwards they have sex at a hotel. Saki is extremely uncomfortable due to the drug doing away with some of sex's physical discomforts, but soon after gets over it. The next day Saki is elated with her new items, but one of the boys from school blackmail her with a photo of her leaving from a hotel (presumably a well known love hotel or with her client). She soons becomes the classs fuck toy for all the boys and spends less and less time with her friends. She comes home one day to find out her father was layed off from his job and is raped when he returns from binge drinking later that night. The affair between Saki and her father continues alongside being the boy's personal jacking-jacket. Her reputation of walking cump dumpster is discovered after she becomes too loud during sex, and the boys with her flee. She is soon bullied by her classmates and finds her desk covered with insults. She flees home to her mother hoping to explain her situation and get help, but finds exactly the opposite waiting for her. Saki's mother is livid after her father reveals the situation to her and she blames everything on Saki. She is assaulted by her mother, kicked out of the house, and forced to stay with Hayato. After dropping out of school and staying with her new boyfriend, Hayato and his dealer Obata, owner of a lowlife bar, introduce her to cocaine. She discovers Hayato is in a massive debt from his drug use and she promises to help pay it back. The drug hits her like a truck due to the massive amount taken for the first time and she finds herself in a hightened state of sexual arousal. Saki then procedes to have sex with her first client during this high who procedes to give her erotic piercings. An unspecified amount of time passes and Saki is seen transformed into a blone haired, tan tattooed harlot. She finds out she is pregnant with an unknown man's child and aborts it to the approval of Hayato. She is deeply remorseful of the decision. Saki later is hired by the old man she had sex with for her first escort job in high school, but he is not interested in anything more than fellatio due to her new "unpure" appearance and pays less than usual. Saki begs to have sex with him for more money, to which he reluctantly agrees, but not before making Saki adopt a degreading, submissive behavior. Despite fully knowing the consequences, Saki allows the man to finish in her. She later goes to the Obata's bar looking for Hayato and finds only Obata and his suppliers. She tries to leave but is forced to have sex (if it can even be described as forced at this point) with Obata and his suppliers while she is introduced to Heroin. She daydreams during her session and is dumped out back while she comes down from the high. She wakes up missing her phone and her wallet is empty, and asks Obata for an advance on her quota. Obata allows her to only if she again, has sex with him. She is given the choice between payment through cash or more narcotics, to which she takes the latter, uses it, has sex with Obata, and puts herself in even more debt due to the drugs used during their intercourse. Saki returns to Hayato's apartment hoping she'll be forgiven, to which he responds with insults, mild violence, and kicking Saki out. She wanders through the city until she uses the last of her drugs in a park, masturbates, and is overpowered and raped by two homeless men. She passes out and wakes up in the men's encampment and discovers she is once again pregnant. She continues selling herself while pregnant and encounters Obata's old suppliers. She begs for more Heroin, to which the men reluctantly accept her money and tell her to leave. She uses one last time and deposits the rest of the money she had on her into a subway locker with yen alongside some other personal belongings. While doing so, she is confronted by a group of teens to accuse her of stealing her money. Saki argues with the teens who respond with asserting it's not hers, stealing the money, insulting her, stripping her, mocking her, and beating her until she is bleeding profusely from vagina. The teens record the whole incident and leave with her money while a passerby ignores the hopeless Saki on the ground. Saki stumbles into the bathoom, puts on broken glasses she found on the ground, and fixes her appearance until she resembles herself at the beginning of the story. Enraged, she smashes the bathroom mirror and apologizes to her dying child. She takes a large amount of heroin and passes out while muttering "I am glad..." Saki appears an unspecified amount of time later in a park with her young daughter Hana. She tells Hana how she was remembering her dark past whilst sparing Hana the details, to which Hana responds by comforting her. Saki tell's Hana that since she was there for Saki, she could make a fresh start in life. The final panel in the comic is a black transition from Saki and her daughter to Saki's broken glasses on the floor of the bathoom, drops of bodily fluid, and an empty plastic bag accompanied by Saki muttering, "Glad......................................"