In the strange relationship between brother and stepsister, the two nurture pure affection. Though bound by no blood, their hearts connect more deeply than anyone else, their bond unshakable across time and space. Cherishing small daily joys, they support each other through any hardship, a sight that touches the soul. However, one fateful incident changes their world completely. The framework of reason collapses, emotions run wild. Their forbidden relationship unfolds into a tale filled with sorrow and heartache, yet powerfully revealing the strength of love. For the one they love, and for the one who loves them, what choice will they ultimately make?