
Guida
Kozen-ji is a prominent head temple of the Tendai sect located in Ako, Komagane City, Nagano Prefecture. Known as Hoshakusan with the temple name Mudoin, it has long been a center of faith in the region as one of the five great temples of Shinno Tendai. The temple grounds are dotted with historic buildings, and the seasonal changes in the gardens and surrounding nature invite visitors into a state of profound tranquility.
The history of Kozen-ji is remarkably ancient, dating back to the year 860 (Jogan 2) when the monk Honjo received an image of Fudo Myoo from the Kurokawa Falls. Throughout history, the temple enjoyed the patronage of powerful warlords such as the Takeda and Oda clans. During the Edo period, it was granted 60 koku of land by Tokugawa Iemitsu, highlighting its high status. Many of the original structures, including over ten halls and pagodas, still stand today. The site is also deeply connected to the 'Sotaro Legend,' a story that has been passed down for 700 years.

The primary appeal of Kozen-ji is the seamless harmony between its historic architecture and the natural environment. Beside the main hall, you will find the tomb of the 'Sacred Dog, Sotaro,' the protagonist of the local legend, making it a symbolic site of local history. Devotion to the central deity, Fudo Myoo (a hidden Buddha), remains strong, attracting many practitioners and visitors. The gardens and surrounding landscape are designed to reflect traditional Japanese aesthetics, creating a view where architecture and nature become one.
While Kozen-ji is beautiful year-round, spring is particularly spectacular. When the approximately 70 weeping cherry trees (Shidare-zakura) reach full bloom, the branches hang heavy with delicate pink blossoms, drawing many visitors. Additionally, during the New Year period, the temple is lively with people praying for happiness, offering a glimpse into traditional Japanese New Year customs. Visiting during daylight hours is recommended to clearly appreciate the colors of the architecture and nature.

Visitors can experience authentic Japanese temple culture here. By learning the legend of Sotaro, you can deepen your understanding of Japanese folklore and spiritual traditions. The temple grounds also feature well-maintained walking paths and hiking routes, allowing you to explore the historic buildings while immersed in the surrounding natural environment. It is an ideal place for quiet contemplation and personal reflection.
Situated at the foot of the Central Alps, Kozen-ji is surrounded by rich natural beauty. The area is a popular base for hikers and mountain climbers. The surrounding Komagane area also offers various sightseeing routes that combine historical streetscapes with natural scenery, making it easy to integrate a visit to the temple into a broader regional itinerary.

Please observe proper temple etiquette during your visit. As the grounds contain many important cultural assets, please act with respect and maintain a quiet demeanor. Be aware that wild monkeys may appear in the area; please follow any instructions and avoid feeding or provoking them. We recommend wearing comfortable clothing suitable for the season and walking through the temple grounds.