I Was Marked by Gong Gemini in My Dream.

My name is Shijo Rina, I am 16 years old, a second-year student at Shuchiin, and a manga artist. Half a month before school started, I started dreaming. When I woke up, my brain remembered the things in the dream, including volleyball terminology. I don't understand why I discussed various subjects in volleyball terms with two boys I didn't know in my dream? I don't understand why I can talk about every subject in volleyball terms. Obviously I am not familiar with volleyball! I've never drawn a volleyball comic before! I don't know those two people either. But I know the person in the dream very well. We seem to know each other? Even familiar! However, they do not exist in reality, neither their schools nor their names. Just when I thought it was a dream, there was a system that was bound to allow us to chat. Is there even any space for us to get in touch? ! PS: Rina is in Kaguya-sama's world, there is no ABO In the volleyball junior ABO world, Gong Shuang is both A Mission: There is no end to learning, live until you are old and learn until you are old