@TheSoloObserver Of course the future changes depending on your actions. The girl (i forgot her name) never met Aruto in his past life which made her realization be delayed.
Let's say you're a teacher and you go back in time, but instead of giving your students 1 hour to do the test you only gave them 30 minutes. After that they'll turn in their exam paper 30 minutes earlier than before, and every action starting from that point will either be changed (there's no guaranteed people will repeat the same thing) or pushed up 30 minutes.
Let's say you're a teacher and you go back in time, but instead of giving your students 1 hour to do the test you only gave them 30 minutes. After that they'll turn in their exam paper 30 minutes earlier than before, and every action starting from that point will either be changed (there's no guaranteed people will repeat the same thing) or pushed up 30 minutes.