In the Mirror Heart Hall!
Mike, Daria, Alfred, and Frederick were all trapped in a duplicated world, battling 'a copy' of themselves.
It seemed to be a deadlock with no way to break it. Moreover, they were exhausted of their energy as time passed, but their 'copies' remained in their peak states, with unlimited Spiritual Power and energy.
At first, they were fighting a copy of themselves. But towards the end, it started to turn into them being chased after by their 'copies'.
They had to escape desperately in different environments, while their 'copies' chased after them with great speed.
Finally ...
After nearly two hours of fierce battling, Mike finally found the issue, and he finally saw hope.
The Mirror Heart Hall indeed had the ability to duplicate all of hi
