A madman's ultimate fantasy, with only a little romance. I hope for a world of beautiful mountains and clear waters, peace for all, no more wars, humanity flying beyond the universe, and people living in harmony with nature.
P.S. This novel is max-level fantasy, chuunibyou, and not a mystery.
The first book in the trilogy: A Love Letter to the Two-Dimensional World, The Beauty Cannot Be Deceived
The third book in the trilogy: A Flying Letter to the Four-Dimensional World, Write Whatever Comes to Mind, also known as If I Had Three Hundred Million, I'd Block My Friends in a Heartbeat (I'm working hard to build up a backlog. Please add it to your reading list!)
Theme: Keep moving forward with determination, and your life can never be ordinary.