Boku ga Imouto wo Korosu made
僕が妹を殺すまで
Mikoto is an attractive girl who captivates those around her. After losing his parents, Masahide sees his younger sister as his sole remaining family. One evening, Mikoto commits a violent act in front of him, leading to a shift in their relationship. What begins as a bond of care turns into something darker, drawing the two into a tense and unsettling situation.