In the anime series, the members of Six Gravity and Procellarum are all living in the same dorm building. Hajime Mutsuki and Haru Yayoi, the oldest members of Six Gravity, are first year university students. Each episode of the series will feature a different main character. (Source: MAL News) In the anime series, the members of Six Gravity and Procellarum are all living in the same dorm building. Hajime Mutsuki and Haru Yayoi, the oldest members of Six Gravity, are first year university students. Each episode of the series will feature a different main character. (Source: MAL News)