S1 has a set way of doing everything, 90% of what they do is the same, they don't have much reason to ever differentiate from the norm.
Yes yes I know I know, I have been following JAV and especially major studios long enough to understand it (but not liking it) I was making a point that SSNI-127 is a special case of fail (again judging from cover and screen shots only) even amongst all of S1 formulaic vanilla vids.The same with every other studios. Same cover and clothing starting different actress on the same set while typecasting the same guys to act as virgin or r**ist.
Especially... With the persona of Yua Mikami she so carefully maintains, do you think she would wear that black lacy-shoulder, unsexy-short-skirt out on the street? It's too short for a funeral and downright ugly/inappropriate for any other situation, especially on a (fake) date. Yua has a specific persona, she shouldn't be doing certain genres like every other (top) idols. E.g. if she (according to S1 SOP) has to make at least one vid for that awful "完全プライベートSEX映像" series, she should be doing something a little special. E.g. she can do a glam date thing, dragging a boy-toy along to all the hot trendy places and being cute or moe or chippy. In fact, exactly like she did one simulated date vid on youtube, but add on a bunch of sex scenes. Another approach, more honest to the theme of the series. Is she's going under the radar-dating. Pretend she has to avoid paparazzi, but crave a date as an anonymous girl next door. So she put on big boring jacket, black sunglasses and face mask. Avoid popular crowded locations, and quietly sneak in and out of love hotels with boyfriend. IIRC her backstory was she "graduated" from AKB48 after reporter caught her "dating" some guys (notice plural guys) at a hotel(s), why not play that up for this vid?