My beloved mother, who remarried and took my brother and me with her, died. Now, I live in this house with my stepfather and brother●high school student Ruri. I'm quiet and don't show my true feelings. But since Mom passed away, I've noticed the balance of this household starting to crumble. My stepfather ransacks my room, and my brother peeks at me while I'm in the bath… Eventually, reason will be thrown out the window. I am a plaything for my family… Mom, just hold on until I graduate… I'll do my best. The household that went mad after our mother died will be exposed from the perspectives of the stepfather, brother, and daughter Ruri!
