This is a game set before the prequel to the Nekopara core-series, NEKOPARA Vol. 0: It happens about a half year before the beginning of NEKOPARA Vol. 1, where Chocola and [videogamecharacter/47441] are still kittens, found by Kashou Minaduki. The story is about their arrival to the Minaduki family and the other catgirls.
It was originally a part of a stretch goal from the NEKOPARA OVA (anime of the games) crowdfunding project