info taken from PSO-World.

Apparently Barubary has confirmed the correct and only way to unseal the J-Sword. As was rumoured before, you do have to slay 23,000+ enemies with the J-Sword. When this is achieved, the Remove option becomes Use. You need to be the one who deals the finishing strike on every kill to have it count towards your total.

This will not work on a hacked J-Sword, and there are a few bugs present.

1. When you kill a monster with a Sealed J-Sword, other people in the team do not see the updated kill count. I recommend that, before giving or showing this item to another user, that you bank it then remove from bank.

2. If as a result of #1, you see the kill count as 23000 or higher (able to convert) and other people don't, when you use it, other people will not see a Tsumikiri, and still see the Sealed J-Sword. After making a Tsumikiri, you should bank it and unbank it so everyone is synchronized.

Now does anyone here have a legit J-Sword to try this out on?

I saw that this morning over at TA. 'Bout time someone found this out. Too bad I never found one to test this out on. Damn gi-gue... plus I don't have a skyly in ult.

Holy Crap! 23,000? That's alot of killing.
I wonder how long that would take? Even on normal.. that's gotta take a long time.

*for the uninformed*
Where do you find this weapon? and How?

Its a skyly only drop. location the dreaded Control tower. The culprit= Gi Gue. The big mosquitos. wow for DC it was a RA/HU male only wep. Now its limited to HUs only. :T I would have love swinging that with my RAcast.

Kill count wtf are youtlaking about there aint no kil lcount in PSO.

omzg bruberry said dis so it must be troo