Can someone help me how to create an interesting and captivating character, it is useful to recognize the aspects of a character you already find interesting or captivating.

The answer is "he was bad enough in all conscience, but the devil himself could not temp him to turn slave-trader. satirical is a synonym for sarcastic. so when the author says that tom walker could not be tempted by the devil he does not literally mean "the devil" but he means that he is too morally upright to become a slave-trader.

Manga is a japanese comic book (sort of) while anime is the a sort of show on a screen. most animes were originally manga though