As it turns out, the film is more than just humor:
1. Affection: The two fathers did their best to make life happier for themselves and their families. Although it was not a good fit at the beginning, they became more united as they overcame the difficulties. It brought two very different families together.
2. Love: At first I thought the movie was about a love triangle, but after watching it, I changed my mind. The hero and heroine fell in love, and with pure and beautiful first love, let a person envy. Then a third person intervened, which made him disappointed and jealous at first. But at the end of the day, everyone has different intentions, so that's a good thing.
3. Environmental protection: At first, the island was a harmonious utopia. I want to live there. But a comfortable life always comes at a price. In order to build a utopia, civilized families destroy the original ecological environment, and local animals lose their beautiful homes. It could also mean that, in real life, humans are trying to make use of nature.
4. Generation Gap: The generation gap between parents and children has always been our trouble. In this movie, it's no exception, they're all chasing different things. The father wants his family to be with him all the time, and the daughter wants privacy and love.