Vocabulary consisting only from characters you are able to read

kanji kana meaning randomReload
いつの間にか いつのまにか before one knows, before one becomes aware of, unnoticed, unawaresjlpt3
あいだ a spacejlpt4, leda1, toki
なな 7jlpt5
六つ むっつ sixjlpt5
~日 ~にち day (of the month)jlpt5, toki