A commission! Here's the good professor from Detective Conan/Case Closed! I will also be making and posting a character model of Ai Haibara soon, as well. In the meantime, you can check out my older Ran Mouri model (which I may or may not update to have a V2 soon since I have a better idea how to train Illustrious models than when I did in December of last year).
➼Obligatory self-promotion: consider supporting or commissioning me at https://www.fiverr.com/metalchromex/make-you-a-stable-diffusion-anime-character-model or https://www.patreon.com/MetalChromeX so I can continue making cool crap for you all to enjoy for free!