User blog comment:KodachiZero/Weekly News - 2/@comment-62.231.136.1-20160617080546/@comment-3215051-20160617080926

That was due to a special event where if you cleared up to specific point in the Main Story before June 16, you would get free tickets. Clearing 5-13 of Main Story 2 would give you one gold ticket, while clearing 6-14 of Main Story 2 would give you the other three. [Zero]