Okay the how:

You create a new account (which you have)

-1(from the forum on the new account ) Go to settings , Go to "My Customer Service"

-2(In-Game on the new account) Click your name next to the little person icon on the top right ,Go to "My Customer Service"

Submit a ticket about the lost account to customer support from the new account.

They'll respond with the proper appeal format detailing what information they need to prove ownership,

Once the proper filled in "appeal ticket" has been submitted. They'll look into the appeal claim and contact you in responses to the ticket for any additional information.

Simply follow CS-teams instructions and requests on the ticket responses and you should be able to regain access assuming you did not violate TOS etc.

I am NOT staff nor speak for any facet of Naruto online/Oasis, just another player that has had to go through this before.

What about if I forget my login password? I already checklist auto login and since i was played this game 2-3 years ago so I forget the password. I have plan to change my device and need install new game to the new device and it will need the login password. Can you help me with this one?

If you still have the old miniclient you can select the eye in the password box to show the password.

If you haven't reinstalled a new miniclient yet you can go into your appdata and back up the files in:

C:\Users\"username"\AppData\Roaming\Naruto Online\

Restoring these files after installing the miniclient on any machine will effectively transfer logindata.

If you have legitimately Forgotten your password and cant recover your account you will have to go through the steps in the prior post, this would only be resolvable with customer support. Customer support is only accessible via support ticket, do not fall for scammers ingame or on discord claiming to be support or staff.