The song is called "キミがいれば", the Chinese song is called "If You Are Here", and the singer is Iori. Lyrics written by Ren Takayanagi, music composed and arranged by Kazuo Ohno
Illustrations
Extended information
High school student detective Kudo Shinichi and childhood sweetheart classmate Maori Ran together When I went to an amusement park, I witnessed a suspicious transaction involving a man in black. Kudo Shinichi, who only peeked at the transaction, ignored another accomplice approaching from behind. He was given poison by the man, and when he woke up, his body had shrunk! If those guys knew that Kudo Shinichi was still alive, not only would their lives be in danger, but they would also endanger those around him. On the advice of Dr. Agasa, he decided to conceal his identity. When Xiaolan asked about his name, he changed his name to Edogawa Conan. In order to collect information about those guys, he stayed at the home of Xiaolan, whose father was a detective. The mysterious black organization... All he knew was that they used the name of wine as their code name. In order to expose the true face of those guys, the little detective Edogawa Conan's activities begin!
Reference material Baidu Encyclopedia-Detective Conan