Thread:SpaceCobra31/@comment-32225200-20170607113536/@comment-28010705-20170725214348

Just go to the Prisoners' Casino (Land of Sin) and complete at least one of the two 4th Anniversary quests (Lvl. 40 and Lvl. 60 with 5 AP) below resp. 180 and 220 seconds in order to pull within the golden roulette. The second reward (4周年の団扇) is the fan ^_^

These Casino quests are not easy if you target the golden roulette, thus optimise your team.