Dad Is Dead at the Beginning, What Should I Do with My Bare Hands?

A firefighter rescues people and accidentally travels to a scholar's home. He has no space, no golden fingers, and no superpowers. He brings his younger brother to become the number one scholar, his elder sister to become a medical family, and his younger sister to become a female teacher. Along the way, he studies, learns medicine, eats, hunts, and fights wits and courage all the way, leading the whole village to become famous all over the world.