[Surprising] The number one fashion no-no on a crowded train. Watch the video to see what happens.

* This work is fictional, and all persons appearing in it were 18 years of age or older and were filmed with their consent.

Japanese people have a highly developed train system, and because they encounter many strangers on their commute (even though they're just going to work), they tend to dress up and wear heavy makeup.
In other countries, commuting by car is the norm, so going without makeup and wearing casual clothes is commonplace.
However, during rush hour in Japan, trains are packed to capacity, easily exceeding 120%.
There are many people there who are planning to cause trouble and are riding the train with that intention.
Therefore, we have compiled this video as "the number one item of clothing you should absolutely never wear on a crowded train."
I apologize to the woman in the video, but I will be using it as teaching material.
I apologize in advance.

Now, let's introduce the video content by explaining the sample images.

[Video Details] The thumbnail (image number) is explained along with the playback time of the relevant scene.

(21:16) If you ride in a one-piece dress, it will reach this far on average. Just lifting the hem up will instantly make you more than half-naked. Your bra and panties will be completely visible. By then, your breasts will be fondled, a hand will be put inside your panties and you'll be fingered and made to orgasm, so there's no escape.
(00:13) Although you are wearing thick clothing, those who engage in disruptive behavior can accurately assess your clothing by looking at the hem and collar.
(02:24) He reaches his hand under her skirt and touches her thigh. He is watching her. The woman seems to notice but can't speak up. This is not good.
(11:17) Sorry for jumping straight to this scene due to the number of frames. Her clothes have already been pulled up to her chest and she's being fingered. You can hear her struggling expression and voice, but she's locked in place on both sides, so there's no way for her to escape.
(11:43) Ah, I've been put in a situation where all I can do is watch as my nipples are exposed and rubbed. There's no hope for me.
(17:44) You might not believe it, but you can faintly hear her say, "I'm...coming...♡!!!" ...and shortly after, her body suddenly starts to convulse, her upper body arches upward, and her head hangs down.
(18:11) At this point, I'm sure you agree. I was definitely made to orgasm at least three times that day. It was an obvious orgasm (on the train) that you could tell even in silence.

After getting off the train, they look back, and I think they do that to check who it was so they can think about it later. That's just my guess, though.

Office ladies, please be careful.

Resolution: 3840×2160 (4K/24fps)
Recording time: 22:36