Khara, Inc. (株式会社カラー, Kabushiki-gaisha Karā, stylized as khara, Inc.) is a Japanese animation studio best known for its work on the Rebuild of Evangelion film tetralogy. Studio khara (スタジオカラー, Sutajio Karā) is the primary animation production studio. It was founded by Hideaki Anno in May 2006, and was shown publicly on 1 August when recruitment notices were posted on his website; Anno remains its president.[2] The name khara comes from the Greek word χαρά, meaning joy. In 2016, Khara sued Gainax for 100 million yen in unpaid royalties from an agreement that Khara would earn royalties from income received on works and properties that founder Hideaki Anno had worked on.[3] The suit alleged that Gainax delayed on paying royalties and incurred a large debt with Khara, which had loaned 100 million yen in August 2014, but had yet to receive payment on the loan.