More island mythologies and insights into the survivors' pasts are divulged. It is unclear if these are their actual spirits or merely echoes reliving their pasts. The protagonists are controlled by their pasts and the complexity of time. They had been haunted by their guilt and their grief-ridden pasts. Like Misuzu, both Kano and Minagi have strange personalities connected with mysterious pasts. On the way, they overcome various obstacles and must solve mysteries pertaining to their pasts. Episodes often feature flashbacks of significant events from various inmates' and prison guards' pasts. The two men reminisce about their pasts. With reluctance, the dancers reveal their pasts. Dedicated in their own fields, the two are broken souls with troubled pasts. They have hidden pains and dark pasts. Both sleep peacefully that night, free from their respective haunting pasts. Rahul and Sue grow more intimate, sharing stories about their pasts. While the two eat the bear, they bond over their pasts and fears. Several gang members are former soldiers with violent pasts.