Can I be banned for something like that?

[Wrasten]

A friend of mine in real life started playing with me, I made him a friend partner trough invitation as well, but he's very careless and tried to login from the exe without any vpn/tweaker. Knowing how careless he is, now I wonder if something happened to his account, Sega will check his friend inviter as well...

Should I be worried?

Other thing: if I would ever happened to go living in Japan, should I restart the whole registration or just playing with the usual account? (of course I won't be using the tweaker any more).

[Anduril]

Most people can log-in without a VPN or Proxy. In fact there are many people who don't use the Tweaker either and play outside of Japan. I would only be worried about your account being banned if you are logging in from multiple, vastly different IP addresses within a short period of time.

[Wrasten]

I feel more relieved, however I feel still a little strange since someone is now going around the ship with my ID in his name... :-o