Kaisen Joki a Buddhist priest originally from the Mino Province

Mino Province

, one of the old provinces of Japan, encompassed part of modern-day Gifu Prefecture. It was sometimes called . Mino Province bordered Echizen, Hida, Ise, Mikawa, Ōmi, Owari, and Shinano Provinces....

.

It is not truly known if he is related to the Toki clan

Toki clan

The was a powerful clan that ruled in Japan from the Kamakura period to the Edo period. It descended from Emperor Seiwa by Minamoto no Yorimitsu from the Minamoto clan and used Toki in Mino Province as their hometown...

. Following the rise of power to Saito Yoshitatsu

Saito Yoshitatsu

was a Japanese daimyo of the Sengoku period. He was the second generation lord of the Saitō clan.-Early life:Yoshiatsu was born in Mino Province in 1527, the eldest son of Saitō Dōsan. Some theorize that Yoshitatsu was in fact the son of Toki Yorinari, the former ruler of Mino...

, Joki fled to the Owari Province

Owari Province

was an old province of Japan that is now the western half of present day Aichi Prefecture, including much of modern Nagoya. Its abbreviation is Bishū .-History:The province was created in 646....

. Then Joki went from Owari to the Kai Province

Kai Province

, also known as , is an old province in Japan in the area of Yamanashi Prefecture. It lies in central Honshū, west of Tokyo, in a landlocked mountainous region that includes Mount Fuji along its border with Shizuoka Prefecture....

. There Joki met Takeda Shingen

Takeda Shingen

, of Kai Province, was a preeminent daimyo in feudal Japan with exceptional military prestige in the late stage of the Sengoku period.-Name:Shingen was called "Tarō" or "Katsuchiyo" during his childhood...

 and Shingen was very impressed by him. Shingen afterwards made Joki the head abbot of the Erin-ji in Kofu.

After the Oda

Oda clan

The was a family of Japanese daimyo who were to become an important political force in the unification of Japan in the mid-16th century. Though they had the climax of their fame under Oda Nobunaga and fell from the spotlight soon after, several branches of the family would continue on as daimyo...

/Tokugawa

Tokugawa clan

The was a powerful daimyo family of Japan. They nominally descended from Emperor Seiwa and were a branch of the Minamoto clan by the Nitta clan. However, the early history of this clan remains a mystery.-History:...

 alliance invaded the territory of the Takeda during the year of 1582, the Irin-ji were accused of sheltering the likes of Rokkaku Yoshiharu

Rokkaku Yoshiharu

the eldest son of Rokkaku Yoshikata. During the year 1559, Yoshiharu became the official head of the Rokkaku clan, though he and his father ruled jointly. Both were at the Battle of Norada in 1560, where they were defeated by Azai Nagamasa. Yoshiharu along with his father abandoned Kannōnji Castle...

(a former enemy of the Oda).