Episode 48

Summary
Bookman tells the group that the akuma are after the crystal ball, as it contains innocence. When an akuma drops Mai-Ling into the whirlpool in order to get the crystal ball, Lenalee saves her. Lenalee tells Mai-Ling that she is an accommodator of innocence, and once the group defeat the akuma, Mai-Ling decides to join them and become an exorcist.