I have read the manga before watching the movie and first things first the manga is still ongoing so I was wondering how the movie would end. So here are the things I really loved about the movie: - The characters were portrayed well, as an adaptation the characters physical appearance as well as traits were not changed much. The lead actors (Suda and Nana) totally draws you in, the way they looked at each other and interact, the chemistry between the two is strong so to speak. - The ocean/under water scenes are breathtakingly beautiful. The film itself was taken in a way that captivates the audience and makes you go "ah I want to go to that place". - The story is not too simple and not too deep. Its a perfect balance for those who are sick of the usual mushy love stories. And the part/s that could have been improved: - Details, if you haven't read the manga you might be confused at some part or think that the pace is quite fast. It could have been better if it was more detailed. All in all its a movie worth watching!