Vocabulary consisting only from characters you are able to read
九日
ここのか
nine days, the ninth day (of the month)jlpt5, toki
同時に
どうじに
coincident with, while, simultaneouslyjlpt3
思いつく
おもいつく
to think of, to hit upon, to come into one's mind, to be struck with an ideagodan, jlpt3, verb