Bee Flower was a black butterfly-shaped mark that Suzumebachi left on an enemy after Soifon struck them with Suzumebachi in its Shikai state.
As long as Soifon's second attack hit the same wound as the first, the two overlapping "Bee Flowers" could kill the enemy.
However, this ability became ineffective against people whose spiritual pressure greatly surpassed Soifon's.
In fact, this was not limited to Soifon. Basically, every Soul Reaper's Zanpakuto ability would be weakened or rendered completely useless when facing someone with spiritual pressure far greater than their own.
Of course, powerful abilities required even stronger spiritual pressure to counter the effects of a Zanpakuto ability.
That was what Aizen meant when he said that a Soul Reaper's battle was a battle of spiritual pressure.
"If your Zanpakuto's ability truly is 'Nigeki Hissatsu,' then when attacking an enemy, you only need to strike the same spot twice in rapid succession to kill them."
"But in reality, that can't kill an enemy at all, can it?"
Soifon stared at Ailin in shock.
After learning her Zanpakuto's ability, Soifon had tested it just as Ailin described. Yet the result was exactly as he had said: rapidly striking an enemy twice in succession would not kill them.
"To make your 'Nigeki Hissatsu' work, you need to wait until your attack forms a complete 'Bee Flower' on the enemy's body. Only when your second attack hits the previous point of impact and the two Bee Flowers overlap perfectly will this ability kill the enemy."
"This is what I told you before: what kills the enemy is not your Zanpakuto, but the 'Bee Flower.'"
In Ailin's view, Soifon's "Nigeki Hissatsu" was not even as powerful as the ability of Wabisuke, the Zanpakuto wielded by Izuuru Kira, Vice-Captain of the Third Division.
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