Well, first and foremost, expect to hear lots of moaning from actresses during the scenes that they get sucked, fingered, or fucked.
Even if there are weird laws that are about sex and pornography in Japan, people there are still drawn to doing the deed.
All models were 18 years of age or older at the time of depiction.
So what can you expect from Japanese porn, anyway? Girls come in for a Modeling Audition, but end up doing their first Porn video instead.