Sequel
66A Teekyuu one-shot to commemorate the 10th anniversary of Comic Earth Star showing the characters' lives a decade after the original manga's ending.
Side Story
64
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Spin-off manga centers on the daily life of Nasuno Takamiya, the "exceedingly airheaded" school tennis club member in Teekyuu, and her friends. (Source: Anime News Network) **Note:** Volume 2 contains the extra story "Maboroshi no Dai 1-wa: Kodaira Tasuku desu!" (幻の第1話 古平たすくです!).
Spin-off
The girls of the Usakame High tennis club, Tanaka Kinako, Suzuki Ayako, Sato Kurumi, and Nishiarai-Taishi Nishi, pursue their various dreams... This high school comedy kind of thing starts now. Usakame, the official rival of the high intensity comedy Teekyuu, depicts the mostly ordinary but slightly strange daily lives of four girls who devote themselves to practice. (Source: Crunchyroll)
Parody
