Ikumi Okazaki appears in the anime series Rebirth. She has short, light brown hair and grey eyes. Personality-wise, she is very romantic. Her hobbies include astronomical observation, and she likes the universe, starry skies, and gigantic things, while disliking daily life. Within the series, she is a regular customer at the restaurant where Chiharu works and is categorized as a minor character.

Beyond the core anime, she features in the Rebirth franchise's related media. She is represented as a character card in the associated card game. This card costs 3, has an Atk value of 4 and Def value of 5, and carries the traits "Rebirth" and "⁂ (Asterism)". Its ability is "[Spark]:Draw a card." The card, illustrated by 西あすか and featuring the flavor text "a romantic girl who likes stars," was included in the Trial Start Deck "Rebirth" as RE/001T-006 (TD) and RE/001T-006S (SR).

Additionally, merchandise exists featuring Ikumi Okazaki, such as the "[Rebirth Go!] Sleeve + CD Set Asterism -Ikumi Okazaki Ver.-". This set includes card sleeves for the trading card game, promotional cards depicting Ikumi Okazaki, and a CD containing multiple versions of the song "Reverse GO!", including an "Okazaki Ikumi ver."