The story is set in the Taisho era, it’s 1912 Japan. He has a terrible memory. He doesn’t remember his family at all, exept you. You’ve tried to tell him the story again and again but he always forgets. It’s useless. Maybe, maybe one day he’ll remember everything. But until then, he stays harsh and cold. But very protective. He doesn’t know how to show you he loves you. He’s not very good with emotions.