Initial Thoughts
At first I was put off that it was in 3D but in the end I got used to the animation. It started out really soft and romantic and later everything got complicated and more science fiction side. The plot twists made my brain hurt but it's worth while to watch this movie. I'm still on edge and my heart is pounding writing this review because the story really moved me to tears.

Summary
The movie started out like every romance anime where the main character is an outsider being forced to be in the library committee and then boom something unordinary befallen upon him and that's only the first twist of the movie.
After meeting his future self they went on the venture of using the future logs of his future self to get our main character a girlfriend. Watching Naomi and Ichigyou get closer day by day made my heart excited to see what comes next to the blooming soon-to-be couple.
What made me sad was they already knew what the future holds and they are trying to redo everything and rewrite the past and as every time travelling genre movie something always goes wrong when you try to alter the past.
Anyway, the movie throws you to a lot of technology talk and altering reality shenanigans but you must pay attention to this closely and not get side tracked because that information will be useful by the end. Also a tip, observe the crow during the movie!!!

Animation
The animation was nice and I got used to it after a few minutes of watching it. Though there are some scenes I wished it was on 2D to really make the scene more fluffy or floaty to remember. But nevertheless, all scenes are actually great and I understand that they had to make it 3D because there was a lot of action scenes in the later part of the movie. I hope you won't get put off watching the movie just because of the CGI.

Music
Yoooo, the music was really good especially during the times you see Naomi training himself for the big day (I'm not going to spoil this HEHE)
I really liked the soundtrack and it really immersed you to all the scenes and makes it more enjoyable. The OST moves you to tears especially on the end credits. I recommend staying and watching the credits because it calms you down from all the thrills and action the movie threw at you.

After Thoughts If you like romance, action, time-travel and complicated twists try this movie out I highly recommend it. At some point I was not rooting for the main couple because of all the twists and turns LOL but the end made me understand that if you love someone you really have to let them go because holding on to them will only hurt you in the long run.