A single-heroine story with Eriri, set in a crossover world. Interpret the title the same way you would The Holy Roman Empire or The Sevenfold Suite for a Departed Princess.
Stage One: We claim the protagonist doesn't like Eriri. He's a skeptic when it comes to love at first sight.
Stage Two: We claim the protagonist might possibly like Eriri, but it's still too soon to make a move.
Stage Three: We claim the protagonist should confess, but he might not know the right way to do it.
Stage Four: We claim the protagonist and Eriri should have gotten together earlier, but now they even have a child.
(There's already a completed 440,000-character story, The Bizarre Mystery Writer and Kasumigaoka Utaha. I guarantee a complete story and no tragic twists.)
