is character Heart (Post 24). There is a minor difference: the Heart in Angry has no dot inside, which could be because the space is too small to put the dot in, so omit it.
The heart of slave is angry, which is the feeling of the slave. Because the slave is forced to do what he/she doesn't want to, has no respect, be abused, so his/her heart is full of angry.
The small seal script of the character Angry is
The top is character Slave, the bottom is the character Heart.
The clerical script of the character Angry is
Similarly, the top is Slave, and the bottom is Heart.
The song typeface of the character is
The Pinyin of the character is Nu4.