Rinko Shirokane

Birthday - October 17, Height - 157 cm, Blood Type - O, Class - 2nd year B group (Season 1) → 3rd year A group (Season 2) → University freshman (Season 3), Nickname - The Unshakable Skill Master

Keyboardist. Attended Hanasakigawa Girls' High School from 2nd to 3rd year → Yotsuba Women's University, Faculty of Arts, Department of Music, Piano Course, 1st year. A senior at Kasumi's school. A close friend of Ako, often playing online games together.

Has been playing the piano since childhood, heard from Ako that they were recruiting members for the band's keyboard, decided to participate and auditioned for Yukina and others. Recognized by Yukina for the band's potential and became a member.

Very quiet, more introverted than Rimi, but becomes talkative in game chats, often using emoticons. Passive, but once decided, she commits fully to something, which is why she continues playing the piano and online games.

Has a close relationship with Ako through online gaming, often advising and encouraging Ako when she is troubled. Usually speaks politely to everyone, but speaks normally to Ako.

Has a strong core. Observes her surroundings well and speaks accordingly, firmly expressing her own thoughts when necessary, greatly supporting the members.

Skilled in sewing, able to make stage costumes for five people. Her room contains a PC, a grand piano, a gaming chair, headphones, etc.

After advancing to the third year, became the student council president of Hanasakigawa Girls' Academy. Agreed to a joint cultural festival proposed by Hina, the student council president of Haneoka from Pastel＊Palettes, and worked hard as the executive committee chairperson from Hanasakigawa side for its success.

Initially found Kaoru from Hello, Happy World! intimidating, but came to understand and get along with her.

Childhood friends with Rui from Morfonica.

Has a connection with Tomoe from Afterglow through Ako, but their interactions are minimal, leading to different impressions based on Ako's descriptions.

Favorite food is hot milk, dislikes celery. Hobbies include online gaming and crosswords.