7th Expansion is a Japanese dōjin circle that specializes in the creation of visual novels known as sound novels. They started out drawing for the trading card game Leaf Fight, but they are known for creating the dōjin game series Higurashi When They Cry and Umineko When They Cry. They were also involved in the additional console editions of Higurashi produced by Alchemist, Higurashi no Naku Koro ni Matsuri for the PlayStation 2 and the Higurashi no Naku Koro ni Kizuna series for the Nintendo DS.