The young male students at the age of puberty often have desires and cravings, and they may do anything to satisfy those desires, including giving their innocent female friends aphrodisiacs. The content of the first part is very attractive: taking advantage of the girl looking for a book in the library, the young male student secretly put an aphrodisiac in her water bottle, leading to a sudden and furtive affair between them. In the second part, the girl Hosisaki felt tired and asked her close friend to get water for her, but instead, he, longing for her hot body for a long time, disregarded and put an aphrodisiac in the water bottle, and finally, his wish was perfectly fulfilled with the help of the drug. The last part has a similar content to the first part, except the illicit affair took place in the classroom instead of the library.