Kyoto Arc Part 2
The case takes on a new turn as Watari discovers that Dr Muraki has been regularly visiting his old mentor from Shion University, Dr Satomi. When Tsuzuki and the others pay the university doctor a visit he seems oddly curt with them, distracted to meet in person the mysterious immortal who Muraki showed him in a 72-year old photograph. Things go from bad to worse when two girls from the high school, Maki and Mariko, are attacked by Muraki leaving one of them dead.
Aired 11/12/2000EP 11 - Kyoto Arc Part 2

Descendants of Darkness
Even after death, life is full of paperwork and criminals. Tsuzuki Asato is a 26 year old, happy-go-lucky, and dorky shinigami (god of death) whose job is to makes sure that those who are dead remain dead and stay in their proper realms. Even though he's had this job for over 70 years, he is in the worst division with horrible pay. He also has a knack for not keeping partners (since shinigami work in pairs), but now he seems to have one that will stick around; stubborn, smart-mouthed, serious and defensive 16 year old, Kurosaki Hisoka. With each case they investigate, they come closer to the conspiracies of the serial killer Dr. Muraki Kazutaka. Tsuzuki's relationship with Hisoka is growing stronger and closer...but there is a dark past to how Tsuzuki died that will not give him peace.
(Source: Anime News Network)