Vocabulary consisting only from characters you are able to read
五日
いつか
five days, the fifth day (of the month)jlpt5, toki
忍び
しのび
(1)stealth, (2)(abbr) travelling incognito (traveling), (3)(abbr) ninjutsu, (4)(abbr) ninja, (5)sneak theft, sneak thief, (6)tolerance mix