Rosario plus Future Gohan

A last stand turns into a quest to save a forgotten Universe. The fall of someone who tried to save the world turns out to be a second chance to do so. In universe 13 Future Gohan is 15 and in trouble, but now in Yokai will he find the power he has needed for so long, and will Universe 7 Future Gohan save his universe 13 counterpart? Who knows, 13 is an unlucky number after all.