keep one's promice 1st door 1st key 2nd key 3rd key 4th key 5th key 6th key 7th key 8th key 9th key 2nd door 10th key 11th key 12th key 13th key 14th key 3th door 15th key 16th key 17th key 18th key 19th key 20th key 21th key 4th door 22th key 23th key 24th key 25th key 26th keyＮｅｗ！！ 27th keyＮｅｗ！！ 28th keyＮｅｗ！！ 5th door 29th keyＮｅｗ！！ 30th keyＮｅｗ！！ 31th keyＮｅｗ！！ 32th keyＮｅｗ！！ 33th keyＮｅｗ！！ 34th keyＮｅｗ！！ epilogueＮｅｗ！！