Vocabulary consisting only from characters you are able to read
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
三日
みっか
three days, the third day of the monthjlpt5, toki
中
なか
inside, middle, amongjlpt5