O-Cho always supported her master, even during her illicit romance with Nagoya Kenko. However, she noticed that Kenko did not love Sumi-ko, so O-Cho told Funada Genzo about the matter and asking for help.
O-Cho considered Sumi-ko to be like a little sister in need of protection and guidance. During family difficulties, she often secretly helped Sumi-ko from behind the scenes. Her devotion was noticed and she was considered a good and loyal servant.