User blog comment:Bastian77/OVA5 Subbed Version Out!/@comment-25395574-20130619202210/@comment-7418318-20130619214615

I wouldn't call it more tame.

While we don't see any completely naked woman (with the privates somehow hidden by conveniently placed object, water or hands), OVA 5 has boob-grabbing, face-sitting and (imagined) sexual torture along with disintegrating swimsuits.

... also Ichiya and Max. -_-

While it does come down to a matter of opinion, I think the scenes in OVA 5 go a few steps farther than the ones in OVAs 1 and 4.