The Yuzuki Family's Four Sons - S01

The Yuzuki family is made up of four brothers who lost their parents two years ago. Hayato, the oldest, works hard to support the family. Mikoto, the second brother, is usually calm and composed, but he dotes on his younger brother Minato, finding him endearing. Minato, the third brother, is full of energy and loves his siblings, though he tends to be a bit clumsy. Gakuto, the youngest, is a serious and mature first-grader who gets called a "wise man." The story follows their everyday lives as they deal with family, school, and the world around them.