Vocabulary consisting only from characters you are able to read
夜中
jonaka
during the night, at night; (arch) all night, the whole night; midnight, dead of nightmix
上がる
agaru
(1)to rise/to go up/to come up/to ascend/to be raised/ (2)to enter (esp. from outdoors)/to come in/to go in/ (3)to enter (a school)/to advance to the next grade/ (4)to get out (of water)/to come asho godan, verb, vintrans