@Komaru Have you read the official documents regarding the law? I think you'll have more peace of mind if you understand exactly what this law covers. Here is the
link for you (from the Agency for Cultural Affairs of Japan). In case you don't know what ちんちん and マンマン mean, I shall give you a brief explanation:
Got it? And even if they were to tighten level 1 & 2, this is what would happen:
JP daddy: Ughh, my sons read my porn mags without my permission, gotta spank them!
*spank them*
JP daddy: Wtf? How did MD (the boy living next door) sneak into my house and make copies of my mags?
MD (snickering from afar): Fufufu. These are some good shit.
JP daddy: Ughh, I wanna spank him until he's unable to walk, but
he's not my kid, I can't do that. Guess I'll have to ask his pop to spank him.
MD's pop: MD, Mr. JP told me you stole his mags. What shall I do with you?
MD: I'll let you read them with me, pop.
MD's pop: ...interesting.