In the second season, Ruby and her brother Aqua entertain in the entertainment industry to become the top idols. Their mother was killed by someone and later Aqua wanted to find that person and take revenge on him. He entered the industry realized the harsh truth of it and focused on his revenge. Ruby was doing her best to become the top idol as her mother wanted her to see there. For her honor she is trying her best and when she entered in industry. She knew the dark realities of various people. They both reached here with the help of their friends, Kana and Mem-Cho.   【推しの子】第2期