The contrast in her tsundere behavior is significant. Including the collaboration work with Das!, the development where Karen Ishida appears as the 17th girl waking up in the morning as a junior colleague is impressive. Due to a mistake by senior employee Takigawa, they end up sharing a room at their business trip accommodation, much to Karen's annoyance. However, after getting drunk to the point of losing memory, Takigawa performs cunnilingus on her, forcefully inserts his big dick, and gives her a creampie. The next morning, when she wakes up, Karen's yukata is disheveled and she cozies up to him, saying, "We have great chemistry!" But Takigawa, who has no memory, denies having sex. So Karen takes the initiative to seduce him to jog his memory. She actively pursues him with a blowjob in the toilet and sex in the bathroom. Yet Takigawa still doesn't remember and remains passive. Then Karen gets him to drink alcohol, and once he's triggered, he thrusts his hips vigorously, making Karen cum repeatedly and feel satisfied. At first, Karen was the responsible one because Takigawa was sloppy, but at the end, even though Takigawa is about to go to work, Karen says, "Let's have sex!" and drinks alcohol, leading to sex. The complete reversal of their positions is interesting. Because the angry expression she shows at the beginning is very realistic, it's understandable when Takigawa says her overly affectionate attitude the next morning is "scary." When her demeanor changes so drastically, she's cute, but it's a nuanced performance that also conveys a sense of fear. Karen Ishida has cute big eyes and excellent acting skills. Her perfectly flat chest and pure white body with pink areolas are alluring. If she were to become an exclusive actress, I'd like to see her in the flagship series "Super Cute Female Colleague" where she turns a coworker into her boyfriend, or in the same-day release "Female Friend Who Comes to Stay Every Night" playing a role that unconsciously seduces. With the collaboration with Das!, the genres are diverse: colleague, junior, gyaru, classmate. I look forward to co-stars including exclusive actress Miyu Otori, as well as beautiful single-actress Miyu Aizawa, Karin Kitaoka, Natsuho Hanamori, and Meguri Minoshima. I strongly hope this series continues.