Most significantly, you lose the right to privacy; Japanese police can visit your home at any time to inspect your firearms (one of which is that your ammo and gun is kept in a non-portable safe drilled into the residence).
The police might start to raid all the homes of people with registered firearms.
A screwed up turn of events as people who tend to get registered are less likely to start shit. But we have seen gun violence happen in areas where technically there should be none.
While there's no clear motive stated, its fair to be suspicious of any motive being released by the press. After all, the press usually follows the drum of the rulers. No matter the society.
The more important thing to consider after Abe's passing are:
-How is Japan going to turn out?
Let's face it, many aren't fond of the idea of Japan falling into the clutches of Globohomo with prime entertainment getting destroyed on top of that the people and its culture getting replaced with outsiders proven to cause shit and do nothing of value. 2015 Germany proved that point. Its roughly on-par with women with nice tits getting it cut off in chasing a very retarded fad.
Speaking of 2015, some /pol/lack once pointed out if the migrants that were entering Europe were Japanese, no-one would be complaining.
-Social cohesion. How is Japan going to look within 2-weeks or a month after this? Like Abe or not, the man held influence. And everytime a notable politician dies, something is bound to get crazy.
The 2020s are definitely a crazy time. And it doesn't seem like this crazy train has any brakes!