Vocabulary consisting only from characters you are able to read
夜中
よなか
during the night, at night; (arch) all night, the whole night; midnight, dead of nightmix
耳にする
みみにする
to hear, to hear by chance, to hear by accident, to catch (the sound)suru
中年
ちゅうねん
middle-age, middle age, midlife, one's middle yearsmix