College student Shinji was staying at his parents' house for a job interview. His father, Koji, and stepmother, Maki, live there. Maki married Koji one year ago… The only flaw in their harmonious relationship is that she's 'very clumsy'. During Shinji's stay, Koji caused a fire due to careless smoking, and Maki started one by leaving an iron on. Panicked, Maki ran out of the house naked. Shinji made the naked Maki sit properly and gave her a lecture but immediately got an erection at the sight of his lewd mother-in-law's nudity. Shinji, who had lost control, pushed naked Makih straight down...
