Sasaki Mamoru, a welfare caseworker, discovers that his colleague is taking advantage of his position to have physical relationship with a female welfare recipient. To verify the truth, he visits the woman's home and unexpectedly falls in love with her, which leads him to be involved in a conspiracy by the Yakuza. (Source: JFDB) ~~ Adapted from the novel "Warui Natsu" (悪い夏) by Somei Tamehito (染井為人).