JUC-562 - Fleshlight Training: My Sister-in-Law is a Toy

Ishikawa Yu's masochistic acting is top-notch as always. It’s so realistic—I was genuinely moved by how intense her performance was.

After finishing my business, there she is—Yu Kawakami, a human toilet with a blindfold on, sticking her tongue out. If someone like that were in the bathroom, I'd end up focusing on her instead!

The subtitle, 'There's a beautiful married woman in our bathroom,' is clearly a reference to the lyrics of Tsukitei Kachō's famous song 'Nageki no Boing' (The Boing Lament), which says, 'Boing (breasts) are for babies to suck on.' That said, Tsukitei Kachō doesn't appear in the film, and there's no Kansai dialect either. If there's any connection, it's just the 'boing' factor... As for the lead, Yu Kawakami, she's a versatile actress who can play both S and M roles, and her charm never fades. Actually, she's even more alluring now that she's matured. The story is exactly as described in the synopsis, so I'll skip that. The highlight is her being used as a sex toy by her stepbrother, only to be caught by her step-brother-in-law. After a family meeting, she's forced to wear a collar and is treated like a pet dog. During tea time, she has to crawl on all fours to act as a table while wearing a vibrator, and when she drops a cup, she's punished with 'dual-hole vibrator torture.' And the biggest highlight is Yu, fully trained as a sex slave. A party is held at the house, but Yu is nowhere to be seen. When a guest goes to the bathroom, they find... She really suits these roles perfectly. I want one in every home.

The actress's performance is superb, and she's so cute too. Beyond her sensitivity, her erotic expressiveness directly stimulates a man's primal desires. It's genius! If you have even a hint of a sadistic streak, you'll definitely get hooked. The actor does a great job, too. If I had to be greedy, I would've loved to see the 'moment' she fully descends into being a bitch.

I don't think the premise is bad, but I'm dissatisfied with how she loses her mind halfway through and turns into a sex machine with zero humanity or shame. I wish they had maintained the masochistic vibe until the end. If you're into the 'human pet' genre, you might like it, but otherwise, you probably won't find it as satisfying as the high ratings here suggest. Personally, it felt like it fizzled out towards the end.