For film enthusiasts with a vast viewing history, it's well-known that in the AV industry, coming up with entirely original concepts is as difficult as ascending to heaven. Fortunately, the profession of actresses has a high turnover rate, constantly bringing in an endless stream of fresh faces, and different actresses bring different flavors, thus maintaining a sense of novelty. However, the quality of the work still relies on the actresses themselves. Broadly speaking, the dark side of the industry can be divided into two main directions: one is works made by stringing together short clips, and the other is fully scripted, one-stop narrative films. The former only needs to put full effort into the sex scenes to achieve decent results, while the latter must not only consider dramatic tension but also pay careful attention to intercourse techniques. Therefore, narrative works often feature actresses who have been in the industry longer, seeking their seasoned expertise so that directors and producers can focus more on enriching the storytelling. From another perspective, finding an actress with a drama background is extremely rare, like searching for a needle in a haystack. However, the actress in this piece is that rare gift from heaven—she is none other than Mutsuki Saryu. RCT-873, a world where you can rub your dick against anything without getting caught, feels oh-so-familiar and spot-on. For any actress known for her acting skills, if she hasn't gone through ROCKET's trials, the authenticity will suffer greatly. The plot of this film is set such that as long as the male actors don't insert, they can do whatever they want—essentially making them invisible. So, we get to see all sorts of rubbing with the little guy without anyone noticing. Mutsuki Saryu's calm and composed demeanor in the film gives off an air of unflappability in the face of change, and her spot-on imitation of a news anchor is full of professionalism, leaving the reviewer deeply impressed. Mutsuki Saryu, who debuted in AV in 2013, didn't flaunt any physical elements on her debut cover; she didn't even show a hint of sexiness. It's impossible to tell from the photo of that short-haired woman in her neat, simple pantsuit that she's a newcomer—she exudes the aura of a true actress. This "nine-heads-tall athletic beauty" was already somewhat famous before becoming an actress, having appeared in two TV dramas, "Kamen Rider Den-O" and "Virgin Queen," both with solid ratings. Her debut was a full-length narrative film in the fiery detective series, where Mutsuki Saryu's dramatic energy seamlessly transplanted into the dark world, not only performing completely but also with remarkable finesse. Her acting prowess matches the excitement of the sex scenes, proving that her entertainer background is no mere gimmick but genuine substance. It also shows that, as a AV newcomer, she's highly skilled in sex performances. How so? Because the detective series implies a variety of sex scenarios, from being submissively humiliated to displaying the cold, dominant strength of an investigator—and as a rookie, Mutsuki nailed it all. No wonder she was described as an "invincible newcomer." After her debut, her acting was widely acclaimed, establishing her as a "specialist in long films" in the industry; any project needing a story buildup handed to her is guaranteed to be anything but disappointing!