>>725613721
Near the ending when Rikako reveals she's the big bad trying to summon the monster to crush Japan, she reminds Haruaki that in one of the loops he made a promise to her, saying that she could ask "Haruaki Fusaishi" whatever she wanted and in turn he could do the same for "Rikako Uematsu". The twist is that Haruaki isn't even his name and he's been lying about it all along. We never get to know what his actual name is. Also there were hints all over the story that Haruaki wasn't even his name, when he introduced himself he did the whole "Etoo... Ummm..." thing he does whenever he's about to tell a lie.