Lucifer and the Biscuit Hammer, known in Japan as Samidare of the Stars (惑星のさみだれ), is a Japanese manga series written and illustrated by Satoshi Mizukami. It was serialized in Shōnen Gahōsha's seinen manga magazine Young King OURs from April 2005 to August 2010, with its chapters collected in ten volumes. Seven Seas Entertainment published the series in North America.
An anime television series adaptation by NAZ aired from July to December 2022 on the Animeism programming block.
By 2022, the manga had sold 650,000 physical copies.
Plot
Yuuhi Amamiya is a young, misanthropic college student who one day wakes up to find a lizard on his bed. The lizard explains that Yuuhi has been chosen as a Beast Knight, a magical warrior destined to help a princess defeat a mage seeking to destroy the world with a giant mallet floating in space called the Biscuit Hammer. While Yuuhi initially is not interested in getting involved, he changes his mind when he meets the princess, Samidare Asahina, who tells him her intent to defeat the mage and save the world so she can destroy it herself.