Rihito decides to receive the operation to turn him into an Ace. This is the decisive moment in history that the time travelers wanted to change, but knowing what they know now, they cannot agree on what is best for everyone.
...to change Pudding's past...
Wenn wir Puddings Vergangenheit
jetzt nicht ändern,
para cambiar el pasado de Budín.
Si je n’interviens pas
pour changer le passé de Flan,
de mudar o passado do Pudim.