In this chapter, we learn that the ghost of Chaos is still alive, and that he's still using the trick of mirror reversal to gain revenge on Chaos. He's not done yet, however, and he wants to make sure that he doesn't do it again. He wants to know why he didn't use the mirror reversal trick on Chaos when he could have easily used the pupil skill to see through Chaos's mask.
In this chapter, we learn that the ghost of Chaos is still alive, and that he's still using the trick of mirror reversal to gain revenge on Chaos. He's not done yet, however, and he wants to make sure that he doesn't do it again. He wants to know why he didn't use the mirror reversal trick on Chaos when he could have easily used the pupil skill to see through Chaos's mask.