One of the 3 doors beyond Muga no Kyōchi, also known as the sealed door. Muga's power is amplified and released without waste, greatly increasing the user's overall abilities. Achieved by enjoying tennis to the fullest.
First used by Echizen Ryoma in Genius 376.
- Despite Nanjiro being the first known person to have achieved this state, he is the only one that is never shown in both the anime and manga to use it.