Shinkaku Sosa Brainwashing Event - An older brother who is highly dependent on his sister's desire to approve it and has a regression event and co-dependent personality manipulation part - Misu Kawana
Ten years ago. Mizu, who used to be an extreme bracon. However, he erased his brother's existence after a small event. The ten-year gap is a burden on his brother's life itself, but as if inversely proportional to it, he suffers from the intense desire for approval of his sister. A brother who wanted to return to that time when he was in good company started to control his sister by using [the festival], but ...