While the OVA is a niche piece of adult entertainment, the concept of "Himawari" (sunflowers) holds deep cultural meaning in Japan that the title subverts: Himawari wa Yoru ni Saku (Video 2021) - Full cast & crew
The story follows a happily married couple, Norihito and Hisato. Their lives take a dark turn when Norihito makes a catastrophic error at work, costing his company millions. The company president, who has long lusted after Hisato, offers to settle the debt on one condition: Hisato must work as his personal secretary for three months. Out of devotion to her husband, Hisato accepts, leading to a dramatic transformation of her character as she is manipulated by the president. Critical Reception Reviewers from platforms like MyAnimeList highlight several key aspects of the production: Animation Quality: himawari wa yoru ni saku ova sunflower ha yoru hot