Omiya Hachiman-gu (大宮八幡宮), founded in 1063, is a Shinito shrine which is a 7-minute walk from Keio Inokasira Line Nishi-eifuku Station. For details about this shrine, see the article on Omiya Hachimangu.
At this shrine, tradtional archery rituals called the Hikime-no-gi (蟇目の儀) and the Omato-shiki (大的式) are held on January 2nd annually.

Hikime-no-gi & Omato-shiki at Omiya Hachimangu Shrine

At Omiya Hachiman-gu, on January 2, tradtional archery rituals called the Hikime-no-gi and the Omato-shiki (大的式) are held every year.

First, the Hikime-no-gi is conduted. Evil spirits congregated at the blue sheet are exorcized by shooting an arrow which generates sound while flying.

Omato-shiki is another traditional archery ritual which used to be practiced in the imperial court (and later at shogunates). This is a ritual to demonstrate the power of bow and arrow and pacify the country.