Vocabulary consisting only from characters you are able to read
二人
futari
two persons, two people, pair, couplejlpt5
いつの間にか
icunomanika
before one knows, before one becomes aware of, unnoticed, unawaresjlpt3
大して
taišite
(not so) much, (not) verymix
分の
bunno
denominator bun no numerator (in writing common fractions), X Yth's (Y bun no X)jlpt3, math