"Teacher, are you awake? I made dinner, shall we eat together?" "Who...are you?" "...I'm Ran...but...it's still not possible today...what a pity." This woman named Ran said, I had an accident three months ago and lost my memory. And my symptom is that my memory is completely reset as soon as I wake up, Every morning when I wake up, I'm back to a state where I can't remember anything from the previous day...