@KarenPang thank you for your reply, my dear
Can I ballot for 2/4 tickets in each city? Haha or do we have 2/4 chances of getting tickets in all ballots? (if I didn't make myself clear: let's say we have only 2 tickets per person. can I ballot 2 tickets for Nagoya, 2 for Tokyo, 2 for Osaka etc, or only 1 for Nagoya, one for Tokyo, or 2 for one city etc?)