Kaori is a young student in her school's Astronomy Club, and she is studying with the help of Z-KAI in the hope of passing the entrance exams for the school she has set her sights on. The short takes place in the same world as Summer Ghost, loundraw's first film. It was made as a collaboration between loundraw and the Z-KAI Group for PROJECT COMMON, and it exists in two versions: a one-minute cut released in February 2021 and a full version released that August.