Vocabulary consisting only from characters you are able to read
上る
のぼる
(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), t godan, jlpt3, verb, vintrans
僕
ぼく
I (used by men with close acquaintances)jlpt4
大して
たいして
(not so) much, (not) verymix