You can send 1 other "Bujin" card from your hand to the GY; Special Summon this card from your hand. You can activate 1 of these effects;
• Send 1 "Bujin" monster from your hand to the GY; add 1 "Bujin" monster with a different name from your GY to your hand.
• Banish 1 "Bujin" monster from your GY; send 1 "Bujin" monster with a different name from your Deck to the GY.
You can only use the Summoning effect, and the other effect, of "Bujin Mahitotsu" each once per turn.