Read or Die the TV - Season 1 Episode 9 Heart of Darkness

Dokusensha sents the Paper Sisters to a hot springs resort in order to retrieve another British Library artifact, known as "the Key," from archaeologist and special agent Alice Alice Arquette. Coincidentally, Nenene is at the same location for a school reunion/wedding reception. Arquette, has hired Drake Anderson as her bodyguard, and they and the sisters have a face-off in the resort cafe, where Nenene discovers them. The writer follows the Sisters while they chase Alice and Drake into a cave. The Sisters find themselves at a standoff with Drake while Alice retrieves the Key--when suddenly Sonny Wong arrives and brutally slaughters Alice. Even though the Sisters are supposed to be on the same side as Wong, they protect Drake, disgusted by Wong's brutality. Junior appears, masked, and steals the Key. Drake floods the cave and helps the Sisters and Nenene escape. The Sisters receive only partial payment for their "assistance" to Mr. Wong, which they refuse.