Vocabulary consisting only from characters you are able to read
八日
ようか
eight days, the eighth (day of the month)jlpt5, toki
火力
かりょく
heating power, steam powermix
いつの間にか
いつのまにか
before one knows, before one becomes aware of, unnoticed, unawaresjlpt3
万
まん
(num) 10,000, ten thousand, (adv) myriads, alljlpt5