The concept is good, time-traveling, butterfly effect and it shows that every little things in our life is important. If one were to change something, no matter how small you think it is, it could still affect the future. However, the execution itself is horrible. Uninteresting characters with typical dating sim personalities, art that is not pleasant to the eyes, boring sounds. I seriously do not understand the high ratings that the watcher gave to this anime. I think the novel or manga version of this would be better than the anime.
