Vocabulary consisting only from characters you are able to read

kanji kana meaning randomReload
ki spirit, mindjlpt4, leda1
ie house, homejlpt5, uchi
空く aku to become vacantgodan, jlpt3, jlpt5, leda1, verb, vintrans
sora skyjlpt5, leda1, shizen
積もる tsumoru (1)to pile up, to accumulate, (2)to estimate godan, jlpt3, verb