The plot of the game is told in visual novel format, where the decision of the player affects the relationships she has with potential love interests.

She is closely watched over by her childhood friends, Kanata Nanami and Suzuya Tohzuki, who often protect her from the male student body.

As she practices for the summer competition, she simultaneously solves the problems between her teammates (Homare Kanakubo, Ryunosuke Miyaji, and Azusa Kinose).

[4] The last game, Starry☆Sky~in Winter~, details Tsukiko's involvement with the student council, which includes Tsubasa Amaha, Kazuki Shiranui, and Hayato Aozora.

The opening theme song was titled Shoot High and was performed by Hiroshi Kamiya, the voice of Ryunosuke Miyaji.

[8] The third game, Starry☆Sky~in Autumn~, was released on September 25, 2008, and its theme song was titled Lies, Truth, and Our Destiny performed by Daisuke Kishio, the voice of Naoshi Haruki.

[9] The last game, Starry☆Sky~in Winter~, was released on December 25, 2008, and the opening theme song was Grayed Out performed by Yuichi Nakamura, the voice of Kazuki Shiranui.

[11] Throughout 1999, twelve date CDs were released monthly, starting with Yoh Tomoe (the Capricorn) on January 30, 1999, to Azusa Kinose (the Sagittarius) on December 25, 1999.

If the coupons from all twelve CDs were submitted to Honeybee at the end of the year, one would receive a secret date CD featuring a 13th character, Shiki Kagurazaka (voiced by Mamoru Miyano), who represents the Ophiuchus, the 13th constellation.