Shoutout credit to  _DaVeignci and Itscristhalynbelen for the 2D illustration character for Tantei association series! I really suggest their service on their pretty illustrations for those who want their OC drawn, head over to Tala's Graphica shop here: https://www.wattpad.com/1171981834-tala%27s-graphica-shop-2021-tala%27s-graphica-shop

Here are the character below:

Kudo Ranran (Founder) :

Kudo Shinichi (Apprentice)

Mouri Ran:

Hikari Takuma:

Miyama Emiko:

Majima Michio:

Fuyuko Junko: