I'm reading Fairy Tail manga and I don't understand why there are two を in
this sentence.

> この我輩を主人公に本を書かせてやると言ったのに、あのバカ断りおった。

If I understood correctly the context, the person who said that sentence made
someone else to write a book about him because he used the causative-form of
書くtwice (there is another sentence earlier). Also, I just read that "てやる"
means "to do for".

_Is the first を denoting the subject while the second is denoting the direct
object?_

After reading "[Two を in a single sentence - how to understand
it?](https://japanese.stackexchange.com/questions/16288/two-%E3%82%92-in-a-
single-sentence-how-to-understand-it)", I thouht the sentence I wrote above
could have a different meaning because of the second item in this [を
defition](https://jisho.org/word/%E3%82%92) of jisho.org, that is, the first を
could be a subject, as in が.
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2022-01-03T21:37:28.307
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question
particle-を parsing
Two を and one verb