A spin-off from "Detective Conan: Strangers Ten Years Later".
If everything is not a dream, if there is such a parallel time and space, in that world, will Edogawa, who has accepted the reality of irreversibility, see Haibara Ai accompanying him. After being tempered by time and separated from Aomori's setting, will childhood sweethearts still be better than Tiansheng?
Suddenly replaced by Conan from ten years ago, will what happened in a short period of time break the deadlock? How should everything be in such a world? I want to fulfill a dream for myself and Ke Ai.
Conan, who took the improved APTX4869 and accidentally came to parallel time and space, was surprised to learn that the black organization still existed ten years later, and that he could never change back. After hearing the news that Xiaolan was once again proposed to by a new doctor, she finally lost her mind and blew herself up. And his abnormality was all seen in the eyes of Haibara Ai, who used jokes to cover up his sincerity. When Conan leaves, how should Edogawa in this time and space deal with all this? Are they childhood sweethearts, growing up naturally, or sharing life and death together, waiting for each other?
Intention: Let life and death together be better than childhood sweethearts.