It is revealed that the mysterious man is Toichi Kuroba, Kaito's father, the first Kid, and that he knows Yusaku Kudo. Both are rivals, Yusaku is the one who named Toichi "Kid" from "1412". The "?" means "Will you be able to catch me next time ?", and the "!" means "Of course !". Yukiko seems to know Kuroba as well, since she attended make-up and disguise classes at his's some time ago (see Vol. 34-35).
People
Mysterious Man
Mysterious Man?
Major events
Conan is narrating a story of when Shinichi and Ran were at primary school. Some other characters also appear.
Shinichi and Ran enjoy a moment together while watching the sunset.
We see a young Kaito along with Toichi, and learn that Kaito and Shinichi's fathers were actually the generation before them.