^ Thank you!!
Thanks for the info Corvina and Karen! Yup, I've managed to sign up for an account with Lawson ticket with my friend's address and phone number! Bummer I can't use a non-Japanese credit card. I'll have to get my friend to help me out with the payment then! Thankfully it doesn't seem like it's mandatory for me to enter a credit card info.
Another question that I can't seem to find on Karen's link (sorry!!): Can I carry out payment first, and then print the ticket when it's closer to the date - in this case on the day itself because the 10th is the day I land! Thankfully I'm touching down in the morning. Guess I'll have to try a reseller for the Black Cherry show. I just really wanna watch both.