During a medical checkup, Moe's husband, Haruki, is found to have an abnormality in his kidneys. The couple is stricken with anxiety that if things continue as they are, he may have to undergo dialysis in the future. Haruki's cousin, Masahiro, suggests to the couple that they "get his kidney transplant." This is what Masahiro blurts out in an effort to grab Moe's attention. However, feeling indebted to Masahiro, Moe is unable to refuse his advances and falls into lust. After a detailed examination, it is determined that neither dialysis nor a transplant is necessary, but Moe has already...