NA Localization:
"Oh, I have a great idea! It's a superb idea with no strings attached whatsoever!
If Operation God Destroyer goes as planned and we all come out unscathed, let's hold a banquet, with plenty of delicious food!"
While victory was achieved, the promise could not be fulfilled.
This is a record of the past.
Dazzling memories that remain within your heart.
And yet, if such a future was possible, you humans would surely look at this scene and use it as your strength to rise up.
Just like a certain "ordinary" Master who managed to achieve so many impossible things...
...As he rests inside a coffin of uncertainty and the void.
Fan Translation:
"That's right, let's cook up a good idea. Normal kind of good idea!
If the Gods-slaying plan went well, and we came out of this unscathed, let's hold a banquet with everyone!
With plenty of delicious food!"
We achieved victory, but we couldn't fulfill that promise.
The past records.
The splendid memories left behind in my heart.
Even though, if that kind of future was to exist, you guys would think of the humans, and turn them into your strength to recover, right?
In the coffin of ignorance.
As the only Master, you have managed to accomplish many "what ifs" situations, like they are just easy feats.