Question about Next Level concert ticket

[Taralia]

Hello everyone!

I'm going to Japan, Tokyo, in may and I'm planning to see Ayu's concert in Yokohama 9th of may. A friend of mine lives in Japan and he bought me two tickets for the concert on Yahoo Auctions.

Now my friend is telling me that the tickets he bought have the sellers and his wife´s name on the tickets. My friend thinks the man he bought the tickets from is a member of Team Ayu.

So, my question is if I can go on the concert with this ticket, since it's no my name on it? I mean, will the people on the concert ask for some kind of ID?

I remember that an other artist sold "personal tickets" so the tickets couldn't be sold to e.g. reseller-shops.

Hope you can help me!!

Thanks in advance!