Talk:SE.RA.PH/@comment-29427540-20170502050029/@comment-31683135-20170502050602

you need to buy the key in the store, the one who has "NEXT" text in red below, has a value of 200 sakura money you can get the money completing some missions from here http://fategrandorder.wikia.com/wiki/Fate/EXTRA_CCC_Collaboration_Event/Mission_List