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Sai Taku
Chinese Cai Ze
Kanji 蔡沢
Romaji Sai Takku
Epithet Four Pillars of Ryo Fui
Biographical Information
Marital Status Single
Gender Male
Hair White
Skin Pale
State Yan (Originated)
Location Kanyou City (death place)
Professional Information
Occupation Politician
Affiliates Qin Government
Ryo Fui Faction (Defunct)
Ei Sei Faction
Political Position Chancellor (Former)
Japanese VA Senda Mitsuo
Manga Debut Chapter 96
Anime Debut Episode 16

Sai Taku was one of the Four Pillars of Ryo Fui. He was the highest ranked diplomat in Qin and was usually stationed in Yan.


He was a tiny old man with white hair and a long beard. As an official, he was always seen in court robes.


He was highly intelligent and does not let anybody know what he was actually thinking. For example, he was one of Ryo Fui four pillars, his last work was to ensure the vision of Ei Sei’s unification of China. In the youth, he had hoped to forge a path that could alter China's future to reduce the bloodshed. However, he was disillusioned and was convinced such a path did not exists until he witnessed Ei Sei's tenacity and vision in You during Sei's coronation. Afterwards, he was convinced Ei Sei had the qualities of a king that appeared only once every 1000 years.


He was originally from the state of Yan. Decades ago, he was a chancellor under King Sho of Qin. He served under four kings of Qin and achieved great honors.


Training Arc[]

After the assassination attempt on Ei Sei, he along with the others in the Ryo Fui Faction came to court. During the meeting he told Sei, to hurry and mature because he will serve only those who are strong. After the meeting, he told Ri Shi that Ryo Fui was not trying to kill Sei that night, but instead tried to have some fun.

Sanyou Aftermath Arc[]

On his way back to Qin, he encountered Geki Shin and warned him of the danger in facing Ri Boku and Hou Ken

At the swearing-in of the new chancellors, when Shou Bun Kun was made chancellor on the left, Sai Taku told Ri Shi to be patient as his time will soon come to be a chancellor.

Coalition Invasion Arc[]

During the Coalition invasion he was sent by Shou Hei Kun to stop the state of Qi from invading Qin and was granted passage to see the king. Mentioning how peculiar the king was, Sai Taku states that it was the reason why they were granted an audience. In talking with Ou Ken, he hears what Ri Boku offered and agrees to double it if the Qi broke off from the Coalition army. After Ou Ken agreed, he left the rest to the military of Qin. 

Bureaucrats Job Arc[]

Sai Taku had organised a meeting with the kings of both Qi and Qin. He did that completely on his own behalf, and surprised everybody in the Qin court with this action. Since he had to transport the king of Qi through all of China, he had to pay a bribe to Zhao for a save travel, stopped all the fighting on the Qin-Zhao border and allow their prime minister Ri Boku a meeting with the king of Qin as well. These actions were called treason by some of the officials, but Ei Sei agreed to the meeting and its conditions without hesitation.

The meeting with the king of Qi was without any big prepartion, on a terrace with just one of Qins chancellors and Sai Taku accompanying them. It was Sai Taku that chose it should be Shou Bun Kun instead of Shou Hei Kun, what surprised both of them. In the meeting Ei Sei convinced Ou Ken of his way in conquering China, and Ou Ken offered to surrender if Ei Sei would keep his ambition until his armies reach the state of Qi. But if Qin would fail to do so, he himself would rally a second coaltion army to destroy Qin.

When this meeting was over, it occurred, that Sai Taku did not answer anymore. His time had run out, but he finished his life with one of the biggest achievements. The verbal promise of king Ou Ken to Ei Sei, to surrender if Qin does not change its attitude.  


Strength 1
Leadership 90
Intelligence 92
Experience S
Important diplomat of the east

Strength 1
Leadership 90
Intelligence 92
Experience S
Important diplomat of the east

Strength 3
Leadership 92
Intelligence 93
Experience S
Experience: 100

Strength Unknown
Leadership Unknown
Intelligence 92
Politics 93
Diplomacy: 98 and Experience: 100

Sai Taku was a skilled diplomat and was shrewd in how he approaches scenarios. He was old friends with the Qi king and was able to convince him to withdraw from the coalition army.



Sai Taku's beard.png
Sai Taku stroking his beard
Sai Taku.png
Old Chancellor of Qin
Sai Taku's shocked.png
Sai Taku's shocked by Ryo Fui's
rejection of Ri Boku's offer
Sai Taku warns Geki Shin.png
Sai Taku warns Geki Shin of Hou Ken
Sai Taku ask Qi King.png
Sai Taku asks Ou Ken how much did Ri Boku bribe him with
Sai Taku diplomat.png
Sai Taku request to Ou Ken
Sai Taku Touched by Ei Sei's Speech.png
Sai Taku Touched by Ei Sei's speech
Sai Taku's last Request.png
Sai Taku's last request
Sai Taku's Last Goodbye to Ei Sei.png
Sai Taku's Last Goodbye to Ei Sei
Sai Taku's Dies of Old Age.png
Sai Taku's Dies of Old Age


Sai Taku Character Design anime S1.PNG
Sai Taku's character design anime S1
Sai Taku AS2.png
Sai Taku in Anime season 2

Royal Palace
Royal Family Rou Ai - Queen Mother

Government Chou Kou - Ko Reki
Generals Current
Han O Ki
Wa Tegi

Commanders Han Roki - Ha Mui - Bu Tai
Royal Palace
Royal Family Formerly
Shou Hei Kun

Government Shun Shin Kun
Great Generals Kan Mei - Ka Rin

Generals Formerly
Rin Bu Kun

1000-Man Commanders Haku Rei - Kou Yoku
Great Generals Sei Kai

2000-Man Commanders Formerly
Leader Jo Elder

Civilian Shuu (Jo)
Royal Palace
Royal Family Ou Ken
Generals Ganmo
Royal Family Current
Ei Sei - Queen Mother - Rei - Rui
Boku Kou - Sei Kyou - Sho - Sou Jou

Government Current
Ri Shi - Ryo Fui - Sai Taku - Shi Shi - Shou Hei Kun - Shou Bun Kun
Ketsu Shi

Royal Harem Amin - Chou Kou - Kou - Rou Ai - You
Great Generals Current
Mou Bu - Tou
Chou Tou - Duke Hyou - Mou Gou

Six Great Generals:
Ko Shou - Kyou - Haku Ki - Ou Ki - Ou Kotsu - Shiba Saku

Generals Current
Do Mon - Heki - Kan Ki - Kan Ou - Ou Sen - Roku O Mi - Ryuu Koku - Shou Kaku
Dou Kin - Ei Bi - En Ka - Koku Gou - Ra Gen - Rin Bou - Ryuu

5000-Man Commanders Ou Hon - Shin

3000-Man Commanders Kyou Kai

2000-Man Commanders Mou Ten

1000-Man Commanders Curent
Hoku Shu - Gaku Rai - Kaku Un - Kan Jou - Ogiko - Ran Dou
Baku Koshin - Jou Han - Kaku Bi - Tai Un

100-Man Commanders Chu Tetsu - Den Ei - Den Yuu - Hai Rou - Kyo Gai - Ryuu Sen

10-Squad Leaders Bi Hei - Ro En - Ryuu Yuu - Seki - Suu Gen - Taku Kei

5-Squad Leaders Former
Batsu Ken - Bi Tou - Bun Ketsu - Hou - Kyou Ji - San Ka - Yuu Gi

Strategists Ka Ryo Ten - Kai Oku - Mou Ki
Mountain Tribe
King Yo Tan Wa

Elders Chouga Elders

Warriors Ba Jio - Fuji - Rankai - Shunmen - Tajifu - Toji
Royal Palace
Royal Family Kei Bin
Great Generals Current
Go Hou Mei
Seven Fire Dragons:
Gai Mou
Go Kei - Tai Roji - Shi Ei - Rei Ou - Shou Sen - Ba Tou

Generals Current
Fuu Haku - Kan Ei
Kyuu Gen - Haku Kisai - Ga Gyuu - Rinko - Gen Bou - Kyou En - Kai Shi Bou

1000-Man Commanders Former
Dou Sei

Strategists Hyou Ki
Great Generals Current
Geki Shin - Gaku Ki
Royal Palace
Royal Family Tou Jou
Great Generals Three Great Heavens
Ri Boku - Hou Ken
Rinshoujou - Ren Pa - Chousha
Gaku Jou

Generals Current
Kou Son Ryuu - Ri Haku - Ki Sui - Ba Nan Ji - Shuu Sui Ju
Man Goku - Shou Mou - Fuu Ki - Rin Ko - Gen Bou - Kyou En - Kai Shi Bou - Kei Sha

Army Commanders Current
Ba Tei - Kin Mou - Gaku Ei - Kai Gou
Ryuu Tou

1000-Man Commander Gou Ran

Strategists Chousou

Commanders Kaine - Fu Tei

Others Gika

Merchants Former
Ryo Fui - Shi Ka - A Mon - Kou Shou