Voiced by: Kazuha (visual novel)
Shin Koihime † Musō -Kakumei- Edit
Son Go no Kechimyaku Edit
One of the warlord ruling with an iron hand. Hates Go and its leader Sonken Bundai, which is constantly plotting and scheming. In order to bring her plans into action, she made an alliance with Kōchū Kanshō and Gien Bunchō. The commander of the Kannei and Taishiji. After the betrayal of both of their wards were able to make plans and kill Bundai, running through her head. After the overthrow of the Empire Kan resisted the soldiers Go led by Sonsaku Hakufu, but lost and then went on the run. In the end she was overtaken by her former ward Kannei and she was killed.
Ryū Hata no Taibō Edit
It forms a temporary alliance with Shoku to defeat Gengan. Later, she faces a Bundai and deciding all the differences form a duet travelers. In the final battle, Kōso and Bundai help the united alliance of the Three Kingdoms defeat Goko.
Kōso is a crazy and destruction-loving person. She is obsessed with the idea to Go destroy and seize power in all of China.