Hanasaku Iroha/WMG

Kōichi (At least mildly) is Autistic.
This troper is autistic and the parallels between the challenges I have with communicating with others and the issues Ko seems to face are almost (if not completely) identical. It could just be that he's extremely shy and he rarely interacts with anyone other then Ohana, so it's hard to say for sure. Still, there are a few instances where he seems to have trouble reading the other person's emotions. His decision is also something not uncommon for people with autism.