Natsu Koi☆HANABI

 is the first CD single released by Si☆Stella.

Tracklist

 * 1) Natsu Koi☆HANABI
 * 2) Yuamai Only Friend [LIVE]
 * 3) St☆ SiStella Gakuen [LIVE]
 * 4) Natsu Koi☆HANABI [Instrumental]

Featured Members

 * Kashiwa Ayana
 * Kashiwa Yuina
 * Furuoka Koharu
 * Sugawara Miina
 * Kikuchi Yua
 * Okafuji Lulu

Trivia

 * The live tracks were recorded on March 25, 2018.