... I'm currently learning Japanese right now, we could really use someone to promote Shintoism, we also have a Japanese sub-forum if you'd like to post there.
I was looking for a kanji book out of curiosity and this seemed to be a very popular book among the language learning community... Hard NOPE for me imo, could save you time and money:
I've got this nice book called Japanese Folktales which is bilingual, with furigana (reading of the kanji) + audio samples. The NHK has a section with easy Japanese News with furigana as well and even Japanese lessons.
Not sure if I will ever dive deep into Japanese but I've come across these sources and thought these could help.