the shadow in the little shinigami

I read all bleach fanfics I always see ichigo as I said good guy or tanning evil but if kubo give us your new character his son kazuithen why we cannot use that character that why decide to use him as my stories protagonist but is not a good way I will inspire character like in eminets of shadows cid character also it's kind of make sense because let's be real all the current fan pics or Animesh have the same maximum the same roll a powerful protagonist with a good intention but difficult part then why don't I give here protagonist crazy power up but it twisted motive let's see in the story