Vocabulary consisting only from characters you are able to read
五日
itsuka
five days, the fifth day (of the month)jlpt5, toki
七日
nanoka
seven days, the seventh day of the monthjlpt5, toki
十日
tooka
ten days, the tenth day of the monthjlpt5, toki
いつの間にか
itsunomanika
before one knows, before one becomes aware of, unnoticed, unawaresjlpt3