Vocabulary consisting only from characters you are able to read
番
ban
(1)number (in a series), (2)(one's) turn, (3)watch, guard, lookout, (4)bout, match (sumo) jlpt3
入管
njuukan
(abbr) Immigration Bureauryokou
いつの間にか
icunomanika
before one knows, before one becomes aware of, unnoticed, unawaresjlpt3
急に
kjuuni
(1)swiftly, rapidly, (2)suddenly, abruptly, immediately jlpt3, mix