Short movie collaboration between loundraw and Z-KAI Group for PROJECT COMMON. This story is set in the same world as loundraw's first Movie, Summer Ghost, and depicts Kaori, a young student from the Astronomy Club, learning with Z-KAI and trying to pass the entrance exams to her school of choice. Note: There exist two versions of this ONA, a 1 minute long version published 19 Feb 2021, and a full version published Aug 24 2021.