Seikimatsu Leader Den Takeshi!

from the moment he was born, takeshi was born to be a leader. his first word upon birth was “leader”, and his father, hiroshi, was a “leader” among salarymen. after hiroshi suddenly dies, takeshi makes it his life goal to be a leader like his father, so he joins his new first grade class and hopes to become a true leader to his classmates. this series received the 2001 shogakukan manga award for children's manga.