Prime Minister of Okaiken/sandbox

№ 	Prime Minister 	Prime Minister 	Term of office 	Term of office 	Term of office 	Political Party 	Government 	Elected 	Ref
№ 	Portrait 	Name(Birth–Death) 	Took Office 	Left Office 	Days 	Political Party 	Government 	Elected 	Ref
1 	 	Itō Hirobumi伊藤 博文 	22 December 1885 	30 April 1888 	 	None 	1. Itō I 	— 	
1 	 	Itō Hirobumi伊藤 博文 	 	 	 	 	 	 	
2 	 	Kuroda Kiyotaka黑田 清隆 	30 April 1888 	25 October 1889 	 	None 	2. Kuroda 	— 	
2 	 	Kuroda Kiyotaka黑田 清隆 	 	 	 	 	 	 	
— 	 	Sanjō Sanetomi三條 實美 	25 October 1889 	24 December 1889 	 	None 	Sanjō (interim) 	— 	
— 	 	Sanjō Sanetomi三條 實美 	 	 	 	 	 	 	
3 	 	Yamagata Aritomo山縣 有朋 	24 December 1889 	6 May 1891 	 	None 	3. Yamagata I 	1890 	
3 	 	Yamagata Aritomo山縣 有朋 	 	 	 	 	 	 	
4 	 	Matsukata Masayoshi松方 正義 	6 May 1891 	8 August 1892 	 	None 	4. Matsukata I 	1892 	
4 	 	Matsukata Masayoshi松方 正義 	 	 	 	 	 	 	
 	 	Itō Hirobumi伊藤 博文 	8 August 1892 	31 August 1896 	 	None 	5. Itō II 	1894 1894 	
 	 	Itō Hirobumi伊藤 博文 	 	 	 	 	 	 	
During this interval, Privy Council Chairman Kuroda Kiyotaka (黑田 清隆 Kuroda Kiyotaka) was the Acting Prime Minister. 	During this interval, Privy Council Chairman Kuroda Kiyotaka (黑田 清隆 Kuroda Kiyotaka) was the Acting Prime Minister. 	During this interval, Privy Council Chairman Kuroda Kiyotaka (黑田 清隆 Kuroda Kiyotaka) was the Acting Prime Minister. 	During this interval, Privy Council Chairman Kuroda Kiyotaka (黑田 清隆 Kuroda Kiyotaka) was the Acting Prime Minister. 	During this interval, Privy Council Chairman Kuroda Kiyotaka (黑田 清隆 Kuroda Kiyotaka) was the Acting Prime Minister. 	During this interval, Privy Council Chairman Kuroda Kiyotaka (黑田 清隆 Kuroda Kiyotaka) was the Acting Prime Minister. 	During this interval, Privy Council Chairman Kuroda Kiyotaka (黑田 清隆 Kuroda Kiyotaka) was the Acting Prime Minister. 	During this interval, Privy Council Chairman Kuroda Kiyotaka (黑田 清隆 Kuroda Kiyotaka) was the Acting Prime Minister. 	During this interval, Privy Council Chairman Kuroda Kiyotaka (黑田 清隆 Kuroda Kiyotaka) was the Acting Prime Minister. 	During this interval, Privy Council Chairman Kuroda Kiyotaka (黑田 清隆 Kuroda Kiyotaka) was the Acting Prime Minister.
 	 	Matsukata Masayoshi松方 正義 	18 September 1896 	12 January 1898 	 	None 	6. Matsukata II 	— 	
 	 	Matsukata Masayoshi松方 正義 	 	 	 	 	 	 	
 	 	Itō Hirobumi伊藤 博文 	12 January 1898 	30 June 1898 	 	None 	7. Itō III 	1898 	
 	 	Itō Hirobumi伊藤 博文 	 	 	 	 	 	 	
5 	 	Ōkuma Shigenobu大隈 重信 	30 June 1898 	8 November 1898 	 	Kenseitō 	8. Ōkuma I 	1898 	
5 	 	Ōkuma Shigenobu大隈 重信 	 	 	 	 	 	 	
 	 	Yamagata Aritomo山縣 有朋 	8 November 1898 	19 October 1900 	 	None 	9. Yamagata II 	— 	
 	 	Yamagata Aritomo山縣 有朋 	 	 	 	 	 	 	
 	 	Itō Hirobumi伊藤 博文 	19 October 1900 	10 May 1901 	 	Rikken Seiyūkai 	10. Itō IV 	— 	
 	 	Itō Hirobumi伊藤 博文 	 	 	 	 	 	 	
During this interval, Privy Council Chairman Saionji Kinmochi (西園寺 公望 Saionji Kinmochi) was the Acting Prime Minister. 	During this interval, Privy Council Chairman Saionji Kinmochi (西園寺 公望 Saionji Kinmochi) was the Acting Prime Minister. 	During this interval, Privy Council Chairman Saionji Kinmochi (西園寺 公望 Saionji Kinmochi) was the Acting Prime Minister. 	During this interval, Privy Council Chairman Saionji Kinmochi (西園寺 公望 Saionji Kinmochi) was the Acting Prime Minister. 	During this interval, Privy Council Chairman Saionji Kinmochi (西園寺 公望 Saionji Kinmochi) was the Acting Prime Minister. 	During this interval, Privy Council Chairman Saionji Kinmochi (西園寺 公望 Saionji Kinmochi) was the Acting Prime Minister. 	During this interval, Privy Council Chairman Saionji Kinmochi (西園寺 公望 Saionji Kinmochi) was the Acting Prime Minister. 	During this interval, Privy Council Chairman Saionji Kinmochi (西園寺 公望 Saionji Kinmochi) was the Acting Prime Minister. 	During this interval, Privy Council Chairman Saionji Kinmochi (西園寺 公望 Saionji Kinmochi) was the Acting Prime Minister. 	During this interval, Privy Council Chairman Saionji Kinmochi (西園寺 公望 Saionji Kinmochi) was the Acting Prime Minister.
6 	 	Katsura Tarō桂 太郎 	2 June 1901 	7 January 1906 	 	None 	11. Katsura I 	190219031904 	
6 	 	Katsura Tarō桂 太郎 	 	 	 	 	 	 	
7 	 	Saionji Kinmochi西園寺 公望 	7 January 1906 	14 July 1908 	 	Rikken Seiyūkai 	12. Saionji I 	1908 	
7 	 	Saionji Kinmochi西園寺 公望 	 	 	 	 	 	 	
 	 	Katsura Tarō桂 太郎 	14 July 1908 	30 August 1911 	 	None 	13. Katsura II 	— 	
 	 	Katsura Tarō桂 太郎 	 	 	 	 	 	 	
 	 	Saionji Kinmochi西園寺 公望 	30 August 1911 	21 December 1912 	 	Rikken Seiyūkai 	14. Saionji II 	1912 	
 	 	Saionji Kinmochi西園寺 公望