Let me first apologize in advance for my grammar. Thank you.

Story.
The storyline is so crazy. It is hard to explain, so watch it instead. The plot twists are amazing. I especially love the ending. Please watch till the end (including the credits).

Acting/ Cast.
Suzu Hirose is one of my favorite actresses. She did an amazing job. She came out of her comfort zone in acting this role. It's so different from Chihaya from Chihayafuru live actions.
Ryo Yoshizawa's role is interesting. He's so handsome.
Takeru Satoh is in this movie! Sadly, he's just an extra.

Music.
I was not aware that Suzu Hirose can sing. I enjoyed listening to the music. I also sang along, "DEATH!"

Rewatch value.
It depends on the person.
For me, rewatching value is 5. I would rather watch some scenes than rewatch the whole movie.

It's worth the watch!

(It is so obvious that I do not know how to write a review.)