Kindaichi Shonen no Jikenbo - Shin Series - Vol. 12 Ch. 84 - Alchemy Murder Case 1

[MangaDex]

 

[Vassa_Rose]

Omg DDS cameo!

 

[princecharming]

Omg DDS cameo!

I squealed XD I love love that series, can't believe the manga never got published in English :')

 

[KelpTheGreat]

I was confused about the Saburomaru character, who was clearly cameoing from something else. After a little research, turns out he's from a series called Tantei Gakuen Q/Detective School Q. "DDS" is short for the Dan Detective School in the series.