Any advice for this as I not going to get a JR pass (will be just walking around tokyo and Oaska)
Just to confirm, this let me ride on bullet train from Tokyo to Oaska?
http://www.japanican.com/en/tour/detail/VJOPENTO1/?GN_tours
20% Discount! E-Voucher for Osaka Bullet Train Open Ticket Package & Osaka One-day Pass
This do-it-yourself Shinkansen E-Voucher gives you the freedom to decide your own schedule at an incredible bargain with round-trip non-reserved seats from Tokyo to Osaka. When purchasing the voucher, pick a date as your tentative departure date. Then, after coming to Japan, exchange the voucher for a departure date on or within one month after that date and enjoy as short as a 1-day trip to or as long as a 7-day trip to Osaka!
Required
You MUST bring the following items to exchange the E-Voucher for your actual tickets. Failure to do so could result in the exchange being refused:
• Passport (name should match that on the reservation)
• Printed copy of the first page of the JAPANiCAN.com confirmation email to be collected by JR Tokai Tours
• Printed and filled out copy of this travel application form (one per booking)
** Please note that the exchange may take around 30 minutes.