The little sister who was once adorable became a violent sister swinging a nail bat after being influenced by delinquent manga. The otaku brother could not defy such a sister and was always violated. One day, the otaku brother's most precious figure was destroyed with a nail bat, and he decided to take revenge. As the sister slept, the brother restrained her and began to unleash all his pent-up frustrations! The otaku brother's revenge of continuous gut punches begins! The sister…
