Nihonbashi Koami Shrine Reiwa 6 Benten Festival Limited Zaiun Mamori (Wealth Luck Amulet) Card. I bought one for myself, my daughter, and my husband, but it seems my husband didn't want an amulet... I'm not sure if it's the power of this card, but I definitely feel that my and my daughter's financial luck has improved. Today, I'm going to go back to Koami Shrine to wash money and give thanks. This amulet is a new offering that began this year. It's a Benten Festival limited amulet received at Koami Shrine in Nihonbashi, a place known for strong luck, warding off evil, and prosperous business – one of the strongest power spots in Tokyo.