Siblings’ Immunity Experiment Takes a Forbidden Turn with Passionate Hugs

Kohaku, ever the diligent one, manages the household tasks with care. Her sickly older brother undergoes an unusual experiment devised by their parents to boost his immunity through prolonged hugs with his sisters. After one such embrace with Kohaku, their relationship takes an unexpected turn, altering their dynamic forever. Initially a simple act of familial support, the hug stirs deeper, more complex emotions, leaving both siblings navigating uncharted territory in their bond.