), subtitled Momo: The Girl God of Death, is a Japanese light novel series written by K-Ske Hasegawa, with illustrations by Nanakusa.

The series includes twelve novels released between June 10, 2003 and April 10, 2009, published by ASCII Media Works under their Dengeki Bunko imprint.

The series revolves around Momo, a shinigami, and her familiar Daniel, a talking black cat, as they interfere with the world of the living.

A six-episode anime adaptation of the series produced by Group TAC aired between March and April 2006 on WOWOW satellite TV.

Like Momo, she shows outward emotion towards the living and dead, but An has a cruel personality and does not give mercy to anyone.

Accompanying An is a talking gray cat familiar named Nicolas (ニコラウス, Nikorausu), but is referred to as Nicol (ニコル, Nikoru) for short.

Ballad of a Shinigami is a series of light novels written by K-Ske Hasegawa, and drawn by Nanakusa.

A 108-page art book illustrated by Nanakusa was released by ASCII Media Works on April 6, 2006, and also contained an original Ballad of a Shinigami short story by K-Ske Hasegawa.

Another radio drama, again four episodes long and broadcast on Dengeki Taishō, aired between January 12, 2008 and February 2008.

Three volumes comprising four chapters each were released under Haksensha's Hana to Yume Comics label between March 4, 2006 and June 10, 2007.

[6] An anime adaptation produced by Group TAC, directed by Tomomi Mochizuki, and written by Reiko Yoshida aired on WOWOW in Japan between March 3, 2006 and April 7, 2006, containing six episodes.

[10] Three DVD compilation volumes were released by Pony Canyon between June 7, 2006 and August 2, 2006, each with two episodes each, and were sold in limited and regular editions.

The anime is licensed by Maiden Japan, and the series was distributed on DVD by Section23 Films on June 25, 2013.

It was the second TV drama from Dengeki Bunko since Hanbun no Tsuki ga Noboru Sora.

Overall reviews of the anime adaptation titled Momo, Girl God of Death have been mixed.

Theron Martin from Anime News Network gave both the subtitled and dubbed versions a C+ grade overall.

[13] Chris Beveridge from The Fandom Post also gave the anime a review saying it felt like a "90s OVA".

[14] In March 2007, it was reported by Mediaworks that over 1.3 million copies of the first ten light novel volumes were sold in Japan.