有名VTuberの兄だけど、何故か俺が有名になっていた

Synopsis

I have a stepsister named Isuzu. She is a super popular VTuber with over 1 million subscribers, "Isuzu Wine". One day, she forgot to turn off her stream, and our candid conversation was accidentally broadcasted worldwide! The clip of the streaming incident quickly went viral, and overnight, I became an internet sensation...!? The more accidents happen, the more popular she gets!! Together with my overly beautiful and clingy stepsister, and a cute senior VTuber, I aim to rise in the streaming industry!