Shinichi and Ai: Roses and Sunflowers

Ever since the day Teacher Wakasa first came to Class 1-B, the dream Edogawa Conan had relived again and again since childhood began to unfold once more...

Memories surrounded by cherry blossoms from thirteen years ago, dreams growing ever clearer, the tangled Black Organization, Rum & Asaca, and Haibara, with whom he had shared a bond forged between life and death. Neither the Sherlock Holmes of the Heisei era nor the steadily maturing detective Edogawa Conan had ever imagined how they were connected...

Perhaps everything forgotten, everything he had yet to begin figuring out, would all be linked by "love." The "ai" he failed to grasp thirteen years ago would, in a form unlike anything anyone had ever seen, make up for the past, the present, and the future.

(P.S.: First meeting trope ✓ Main plot ✓ Unexpected developments ✓)