Maybe there could be a close friend of Bulan. This friend might be the one who discovers Bulan's secret eventually and tries to help her, even though Bulan initially pushed everyone away when she moved out.
I'm not sure which quotes are the most famous as I haven't studied this novel deeply. But generally, quotes that express the main theme, like quotes about the significance of the 'hujan bulan juni' (June rain) in the context of the story could be quite important.
However, there could be a group in Kiri who are more open - minded. They might be curious about Naruto and his abilities. They could welcome him and even offer to train with him, sharing their unique water - based jutsu knowledge in exchange for his knowledge of Konoha's techniques.
Since I don't know the exact content of the 'Hujan Bulan Juni' novel, you could also visit a local library and ask the librarian if they are familiar with the book and can point you to some notable quotes. Additionally, if there are any book clubs that have read this novel, reaching out to them might yield some good quotes as well.
In this fanfic, it could be that Bulan is in a relationship that she doesn't want to complicate further with the news of pregnancy. So, she chooses to hide it. Moving out might be her attempt to gain some space and time to think. She may be worried about the reactions of her partner or the society. There could be a backstory where she has seen negative consequences of unplanned pregnancies in her community, and she is desperate to avoid the same. So, she hides the pregnancy and moves out to start anew, away from prying eyes and judgmental voices.
Kiri in fanfic usually has a complex political situation. There might be power struggles between different clans within Kiri. And it often has a different set of values compared to other villages. Some fanfics show that Kiri values strength and loyalty above all else, which shapes the actions of its characters.
He might face a lot of challenges at first. The people in Kiri may not trust him easily as he is an outsider. But Naruto, with his determination, would start to prove himself by showing his ninja skills and his good heart.
The 'Ice Dragon of Kiri' in Naruto fanfiction is likely a unique and fictional creation within the Naruto fan - created universe. It could be a powerful entity, perhaps a summon or a mythical being associated with the Hidden Mist Village (Kiri).