In the 2020 summer release season, this work was undoubtedly a major focus, largely due to the perfect pairing with Haruna Hashimoto. But let's rewind to March of that year, when Shiori Kuraki, who was under the agency "All Promotion," posted a photo with Haruna Hashimoto, instantly sparking widespread speculation about a potential collaboration. Social media buzzed with excitement—one is the queen of dark-themed legs, the other has a face like a celebrity version of New Year's Eve fireworks (like Yukie Nakagawa)—and everyone hoped they'd team up for a project. The media and fans even dubbed them the "most beautiful twins" and expressed wishes for a "sister rice bowl" scenario. Fortunately, fans' dreams came true when this taboo piece, titled "I Couldn't Hold Back Anymore: My Forbidden SEX Obsession with My Girlfriend's Sister Over Two Days That Must Stay Secret," officially dropped in July 2020. Let's dive in and enjoy it together~ FLNS-117: I Couldn't Hold Back Anymore: My Forbidden SEX Obsession with My Girlfriend's Sister Over Two Days That Must Stay Secret. Featuring Haruna Hashimoto Vol.1. While this kind of plot is pretty common in the AV world—it's about the main girlfriend Shiori Kuraki being away, and the boyfriend Yuta Aikawa secretly hooking up with her sister Hashimoto—what sets this one apart is the subtle dynamics between the three characters. For instance, Shiori shyly tells Haruna that she's in love, but Haruna realizes that her sister's boyfriend is totally her type. Then, during a moment apart, Haruna boldly kisses her sister's boyfriend, and she gets strangely emotional hearing them have sex. The way the story builds, the ambiguous feelings between them, and the full immersion in their roles by both Shiori and Haruna all come together to create this perfectly synchronized masterpiece. Shiori Kuraki's AV career so far has been pretty straightforward—no huge breakthroughs, but nothing disastrous either. The only thing missing is that big breakout opportunity, like this collaboration with Haruna Hashimoto. In my opinion, she's got real talent; before her debut, she actually trained under the Prestige system, so her skills are solid and worry-free. Fans gave her debut some decent praise, and as long as she keeps working hard and grinding it out, I believe she'll carve out a nice spot for herself in the industry~.