Mysterious. I liked it. Although mostly because it reminded me of old friendships from school. And the concept was new and intriguing.

Very beautiful shots. But camerawork and bokeh are stupid reasons to watch a movie. Characters act wooden. Crying and laughter look rather muted and fake. Acting is slightly lackluster and urgency of island as a trap is not conveyed properly.

You get to see beautiful Yahagi Honoka(the Itazuru no kiss actress) but she is in a supporting role and is mostly sulking throughout the movie.

Overall good story and beautifully made but acting does not match the vision of this story. Division of movie into novel like chapters is not helpful as it feels that you are watching a visual novel and not a movie. Movie is very sequential - good mystery based movies try to keep more than one thing happening simultaneously. Screenplay was not scrutinized properly.

Can be watched once if you like an intriguing plot. Cinematography has an almost painting like quality - honestly very cool to look at. I wish the actors were given more time to polish their performances.