Ikomayama Houzanji temple, also known as Toshitasan Daishoumudouji temple, is an independent temple belonging to the Shingon-Ritsu branch of Buddhism. It is said to be the location of the sacred caves of mountain ascetics, known as yamabushi, that is to say the Hannyakutsu where Katsuragi Shugendou had its origins.|
Housan Tankai Risshi (1629-1716) who came to these rugged crags in Enpou 6(1678) revived the temple. Arrayed among the various halls on the steep eastern slope of Ikomayama are the Hannyakutsu where an image of Miroku Bosatsu is enshrined, the main hall where Fudou Myouou is worshipped, and the Shoutendou where Kangiten is worshipped.
The Kangiten of the temple, known as "Ikoma no Shouten-san," is viewed as tutelary god merchants by the people of ancient capital region and particularly Osaka.