Vocabulary consisting only from characters you are able to read
~階
~kai
(first, second, etc.) floor, story, gradejlpt5
百万
hjakuman
(1)1,000,000, one million, million, (2)many mix
二人
futari
two persons, two people, pair, couplejlpt5
行われる
okonawareru
to be done, to be practiced, to be practised, to take place, to be held, to be prevalent, to be in fashion, to be in vogue, to be current, to come into useichidan, verb
いつの間にか
icunomanika
before one knows, before one becomes aware of, unnoticed, unawaresjlpt3