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Houkago Renai Club: Koi no Etude (放課後恋愛クラブ 恋のエチュード) is a Sega Saturn dating simulation game developed by Prosit. A port of the titular 1996 Libido game of the same name for Windows PCs, it was released exclusively in Japan in January 1998, and was available as both a standalone game and as part of a limited edition package.
The game was meant to be published by Sunsoft at one point, with promotional material having been released under them and their staff remaining credited in the final game, but in the end the game wound up as being published by KID.[3]