During either player's turn: You can banish this card from your Graveyard, then target 1 Beast-Warrior-Type "Bujin" monster you control; once during this turn, it cannot be destroyed by battle or card effects. You can only use the effect of "Bujingi Hare" once per turn.
Bujingi monsters are specifically made to support Bujin monsters and can only activate their effects when there is a face-up Beast-Warrior Bujin monster. Here are some Bujin monsters you can use. Bujin Yamato provides you with an excellent way to search and send Bujingi monsters to the graveyard.