URE-086 A faithful live-action adaptation of a popular doujinshi that vividly depicts the 'seductiveness' and 'maternal instinct' of women in a dark erotic style!! Original work: Nanpo Hitogakushiki, Cuckoo's Nest Harusumi Mizuki

Popular doujinshi: Nanpo Hitogakushi's 'The Cuckoo's Nest' live-action adaptation! A stepmother, Mikiko (Mizuki Yayoi), appears in the household where a father and son live together. The son, Mahiru, feels somewhat uncomfortable with her young and beautiful presence. As Mahiru struggles with his ambiguous feelings towards this 'mother,' Mikiko goes as far as to say, "If I can't be acknowledged as a mother..." and pressures him into a physical relationship as a woman... Mahiru gradually finds himself drowning in the heart, amidst the vague yet sweet relationship between 'mother and child' and 'man and woman.'