Detective Conan - Vol. 41 Ch. 423 - The Mystery Left Behind by a Visitor

[MangaDex]

 

[Heinrich_Heinmann]

I fucking hate this professor. Why does he always use Conan's real name?

 

[randoms986]

I fucking hate this professor. Why does he always use Conan's real name?

Heiji does too from time to time, can't blame them to relax and let their guard down from time to time. Though it is expected its still hard for people like them to act natural all the time under suspicion of surveillance.