Koka Ninja House (Koka-ryu Ninjutsu Yashiki) in Shiga Prefecture is the only existing Ninja House. The mansion is decorated with various tricks and is popular among adults, children and ninja fans. I’ll introduce the history and highlights of Koka Ninja House in detail. What’s Koka Ninja House Koka Ninja House is a ninja house built between 1688 and 1704 by a family of ninja named Mochizuki. It’s said that Mochizuki, who had excellent ability as a ninja at that time, put many tricks on his house. The exterior of the Koka Ninja House looks like an ordinary farmhouse, but it has a three-story interior and even a hidden room. There’s … Continue reading Koka Ninja House – A Lot of Tricks in Shiga, Japan