Talk:The Garden of Sinners Collaboration Event (US)/@comment-2601:5C1:4401:9B53:20E8:D684:22E4:F601-20180207163131/@comment-28242634-20180207164141

No, it's not missable. That..translation is kinda vague. IIRC, it means to fight 10 times in any of the door on that floor. Better wait the missions in NA in game for clearer instructions.