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.
Just like how you thought you
didn't want Mr. Pudding to change,
So wie du nicht willst, dass sich
der Pudding-Onkel verändert,
Así como no querías que cambiara Budín,
Quelqu’un voulant
que vous restiez pareille,
Assim como você pensou que não
queria que o Sr. Pudim mudasse,