@Richman IIRC, it's all contextual. Some kanji only have one pronunciantion but some have two or more that change. I don't know any examples by head though, sorry.
@zarian2 To me it felt that the problem wasn't that the story was cliche but the lack of proper dialogue and a terrible worldbuilding, fix those two and the manga could have lived way longer.
@no168_92 iirc, the actress that does Misora is an actual gravure idol indeed (and apparently, the only one in the entire industry with a tan). As for the rest, I don't know but don't think that they have gone that far (if they really did it would be legendary, lol).