Introducing...my first "batch" of idol OCs, sorry this post is really long! I don't really have a story for their group yet but here's a run-down of who they are:

Kayda(or "KayKay" according to Chiharu): Kayda is the only third year of this trio(the other two being 2nd years). Despite being the oldest, she doesn't act her age as she possesses a stubborn, competitive, and sometimes vulgar personality with a BIG ego, though she's working on improving her attitude as she continues to spend time with Chiharu and Yui. She hung out with the wrong crowd(basically wannabe delinquents) up until she was forced by the school counselor(during her 2nd year) to participate in Chiharu's and Yui's "activity club"(*more on that later) as a way to reform her behavior instead of suspension. At first, Kayda hated the idea of spending time with silly first years and their stupid club but later on mellowed out her personality a little and became an active member of the Activities Club that would eventually become the Idol Club(so original). Though she sometimes claims that she's putting in work just so that she wouldn't get kicked out of school, Kayda actually enjoys being a school idol as it helps her vent her feelings and release stress.

Chiharu(goes by "Sophie" while in America): Originally born in the U.S, Chiharu spent most of her life there before moving to Japan at the age of 13. At first, Chiharu came off as naive and ignorant of Japanese culture after moving while possessing a hyper personality, which is why she weirded out most of her classmates upon entering junior high school. Eventually, she meets Yui, and through some miracle, has been friends with her ever since. Now, as a second year in high school, Chiharu tries to restrain her excitement when it gets the best of her in order to not scare off others. Eventually, through major adjustments in her new home and self-discipline, she is now able to socialize successfully and is quite popular in her school due to her charisma and "foreign charm". Chiharu now fills the roles of the president/leader of the club and idol group due to her constantly motivating her friends and the ability to reach people's hearts easily.

Yui: Yui is an awkward and nervous girl that, despite those qualities of her, wishes to make friends with a lot of people. However, she has trouble holding interesting conversations and conveying what she wants to say and so, she's mostly quiet. Once you get through to her, though, Yui will open up and show her funny side and love for all things boy band-related(only if you're really close). She is a good listener and sometimes offers advice to friends who come to her with their problems, making her the most reasonable out of the three girls. Due to her insecurity of not having a social personality, Yui wishes that she can have her voice be heard and develop some confidence through songs and performances as a school idol.