Kiyoshi Koyama, a first-year high school boy, is a very big fan of VTubers. One day, he fell asleep while illustrating a VTuber character after class. His illustration then was caught by Nene Otogawa, one of his classmate. Admired his work and wanted to become a VTuber as well, Otogawa requested Koyama to draw a model for her. He initially rejected but then accepted at last.

陰キャ男子・小山潔は、隠れて推しのVTuberヒカリキラリのイラストを描いていたところを、陽キャ女子・乙川寧音に見つかってしまう！　偶然、乙川もキラリのファンだったことから意気投合する二人だったが、乙川から突然「あたしをVチューバーにしてくれない？」というお願いをされて…!?
キミとボクで育てるバーチャルヒロインコメディ！