Shouko Komi (古こ見み 硝しょう子こ Komi Shouko?) is the titular character of Komi Can't Communicate. She has a communication disorder and is bad at communicating with people.
Shouko Komi
Autism
for Autism in Diagnosing Fictional Characters (Spooky's Version)
Suggested by andymayer
Diagnosing Fictional Characters but my version.
