I watched this live-action adaptation of the popular doujin work 'Cuckoo's Nest.' It depicts the ambiguous and sweet relationship between a young, beautiful stepmother, Miki (Yayoi Mizuki), who appears in a father-son household, and the son, Mahiru, with a shocking development where she pushes for a physical relationship, saying, 'If you can't accept me as a mother, then as a woman,' breaking conventional norms. Yayoi Mizuki's performance is outstanding, especially in the fellatio scene where the depiction of spitting out while tightly holding the head, combined with comic cuts, enhances the realism, and her plump body and shotacon appeal explode. Her expressive face and skillful techniques are superb, making it hard to look away. However, from the perspective of original fans, the script's lack of fidelity to the source material and insufficient reproduction as entertainment is disappointing. There are also criticisms that Mizuki's charm is ruined by the comic style, questioning the creator's ability. Overall, the erotic scenes are incredibly exciting, but the deviation from the original leaves a complex impression.