Maybe it's because I'm looking too superficially, but I only see a very selfless, perfect relationship! Although it has evolved from family love. But I really don't think incest can be used to describe them.
Why do many people become interested in this film and finish watching it since they accept the subject of non-connection. There is also a feeling that the childhood plot was not handled well, and it actually skipped adolescence, a period with the most emotional richness, which led to the inexplicable generation of this relationship. This is my opinion.
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