Ichigo, under the instruction of his dad, is going to learn the final Getsuga Tensho. It seems the only way to do this is to commune with Zangetsu again. Gosh, how long has it been? In the anime, it hasn't been too long. But in the manga, Zangetsu hasn't appeared for a very long time now.
He uses his Zanpakutou all the time and has trained to be a Vaizard but Ichigo must be really foolish not to be communicating with his source of power as often as he should. It's a miracle he's even lasted this long!
The Dangai is the place where time is compressed 2000 folds. Meaning if the were to train for 2000 hours, it would only be 1 hour in the real world and in soul society. Which means it's an excellent training ground. Kind of like the one in Dragonball Z when the characters trained in a time compressed room to fight off a major villain. It seems strange though that Isshin is willing to sacrifice all his reiatsu to get Ichigo to learn this new Technique. Is it really worth it?
The Final Getsuga Tensho... Why on earth hasn't Isshin used it himself if he knew such a powerful technique existed. And if he did would it be enough to defeat Aizen? If not, what's the point of teaching it to Ichigo? Will we also see that long haired- long hong horned form of Ichigo again? I wonder what Zangetsu has to say about his weilder and his hollow form.
I can't wait for the next chapter.