Chou In has long hair that is tied and a scar close to his right eye. He also has a small beard.
Chou In comes across as strangely timid, for a general, since he didn't object to Ka Rin using him as arm support and was frightened of her.
When Sei Kai fell in combat, Chou In took command of the Han army.
Chou In shows to be an average military commander.