The answer
Lost his speech. Corazon never told Doflamingo and uses the Nagi Nagi no Mi to stay silent as an act.
Ch. 764, p. 7open pagesettled: yes
Key facts
- Status
- Settled · Ch. 764
Evidence timeline
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How we know
Chapter 764 · updated
Corazon doesn't talk because he lost his speech and never told Doflamingo about it. Corazon states he has been silent since always ch. 764, p. 7. The boy explains he never told Doflamingo about losing speech and that Doflamingo assumed it himself ch. 764, p. 7. Corazon reveals he is a silent human from the Nagi Nagi no Mi ch. 764, p. 8. He admits everything has been an act ch. 764, p. 9. "I am a silent human from the 'Nagi Nagi no Mi'." ch. 764, p. 8 "It's all been an act." ch. 764, p. 9 "Well... I've never been able to" ch. 764, p. 9. Corazon uses the fruit to create a soundproof wall during conversations ch. 764, p. 8.