A Friend in Wolf's Clothing
Naru's Tears: Nephrite Dies for Love
Naru-chan gokyu! Nefuraito ai no shi
"Nephrite uncovers Sailor Moon's true identity as Usagi Tsukino. But his attempt to finish her off is cut short when he learns that Naru has been kidnapped by Zoisite, who demands that Nephrite give up his Dark Crystal in exchange for the girl's safety." (source)