It seems I've been Reincarnated as the Youngest Child of a Poor Baron's Family.

Reincarnated as the youngest child of a noble family, Hisui thought, "I can enjoy a slow life in another world!" But that joy was short-lived. The baronial family he was reincarnated into was impoverished, and their territory was overrun with monsters. On top of that, he was bullied by his own family—a truly miserable environment! Wishing to help his older sisters, who, like him, were oppressed within the family but treated him kindly, Hisui one day received different abilities from three beautiful women who called themselves "goddesses," and awakened as the first person in history to possess "all abilities"—!?