Middle-aged Satomi is married to infertile Keiichi and pressured by Machiko, her dominant mother-in-law to give her a grandchild. She seeks distraction in manga romance and meets the student Takumi at an event for anime fans. Soon they start a passionate relationship like "Anzu" and "Muramasa", her favorite cartoon characters. Takumi soon becomes her escape from her boring life while taking an infertility treatment forced by mother-in-law who provides them a financial support. Meanwhile, her husband and his mother begins to notice a video on the Internet -which was taped by herself secretly where she has sex with her teenage lover. Takumi's best friend Fukuda lives with his senile grandmother after his mother abandoned him and can just make ends meet with a number of side jobs. His situation becomes dire when a usurer demands that he pays his mother's debts.