In my past life, I was a frail girl who died of anaplastic astrocytoma and could barely walk a few steps without stumbling. Now overwhelmed with joy as "Hoshino Ruby", the daughter of my favorite Idol Ai, took my life to the fullest, I have given myself the goal of becoming an idol singer, not only to follow in my mother's footsteps. I am the polar opposite of Aqua, my brother, I am extroverted, outgoing, loud, optimistic and communicative compared to my brooding brother.