Family Troubles: Sister Triplets x Brother Reader

Akane, Lily, and Suzu Yoshikawa were all living their lives as normal as they could with their mother in their small home that could barely house the four of them. After their father had left them for his mistress, the four women were struggling to meet ends on their payments and other resources. However, as they felt themselves slowly falling into a pit of debt and despair, their mother had attracted the eye of a kind man that allowed them to move into his home with his son. When the girls meet their new step-brother however, things don't go exactly how they expected...