It's the story of an out-of-touch male aunt who led his swordsmen to open a master house, accepting commissions, earning pocket money, and destroying the time-traveling army.
The retrograde army fled to the gap between time and space, and the aunt took the knife man to cross dimensions to do things. She made a few new friends, and multiple friends lead to multiple paths.
I just came here after making jokes and making jokes all the way.