A young man, Arakawa Koki, who has retained his memories from his past life, is reborn. The world he sees from his mother's arms is exactly the same as his past life in Japan. "Ah, this is Japan. It's not a fantasy world with swords, magic, and elves!" he thinks. However, the reality is... a slightly different history unfolds in this world, a world that is a little bit in the future of Japan. A youth romantic comedy misunderstanding story unfolds. The author likes misunderstanding stories, so this is a classic misunderstanding story. If you have any ideas, please leave a comment. I will do my best to write it.