Akari Neo, who is not only cute and mischievous but also a great actress, has finally been appointed to the series 'The Irreplaceable Brother!' Moreover, this time, NTR elements have also been included to create a spectacular power-up surge! Akari, who is married and living in Tokyo, returns to her parents' home with her husband who has become ED. Meanwhile, Akari follows her younger brother, Yuzuriha, who is feeling depressed and down, but Yuzuriha, who is truly receiving that kindness, rushes through his sister's body and ruthlessly inserts it into his own body and finishes it off...