"Teacher, are you awake? We've cooked meals, so let's eat together?" - "You... who?" - "...My wife Ran...but...I guess it was no good today as well...unfortunately." - This woman named Ran says, - Apparently I had an accident three months ago and lost my memory. - Moreover, when I wake up, all my memories are reset, - Every morning, I wake up and go back to a state where I don't remember anything up until the day before...