"How did you figure it out?" Duke asked in confusion. Seeing New Moon and Full Moon's Shikai for the first time, yet already inferring her true ability—Captain Unohana truly deserved her reputation as one of the longest-serving captains. Duke was somewhat disappointed. He had wanted to hide his strength so he could catch people off guard later, but it seemed he had underestimated these powerful figures.
"My Minazuki does not erase an opponent's flesh and blood. It heals..." Seeing Duke's confusion, Retsu Unohana patiently explained, "A Zanpakuto's Bankai is a further development of its Shikai. Regardless of whether its method changes, the nature of its ability ultimately does not. My Shikai's ability is healing, so naturally, my Bankai is healing as well."
"What does that have to do with you figuring out New Moon and Full Moon's ability?" Duke was completely confused. He did not care about her Zanpakuto's ability; he only wanted to know where he had exposed a flaw.
"You noticed that your Reiatsu increased, didn't you?" Retsu Unohana asked.
"It did increase. Could it be..." A thought flashed through Duke's mind. Could Retsu Unohana's Bankai ability also be related to Reiatsu?
"Minazuki's ability is similar to Responded. Both heal injuries by restoring Reiatsu. As long as you soak in Minazuki, your injuries and Reiatsu will be completely restored. But if you soak for too long, excessive recovery will cause your body to rot. As the master of this blood pool, I can freely control the duration of the restoration. If I wished it, I could make you enter a state of excessive recovery in an instant." Retsu Unohana spoke calmly, pointing out Duke's flaw. "If your Zanpakuto's ability were healing, that would be far too absurd. Minazuki's ability is not harm—it is healing as well. Here, a