Takeshi is a seven-year old kid who was born destined to be a Leader. At school he performs "acts of leadership" by helping out his classmates, making many friends along the way. He is a kind-hearted and extremely outgoing boy, albeit a bit naïve.

Based on the manga by Shimabukuro Mitsutoshi that ran in Shounen Jump.

Shigeru Nagashima, known professionally as Choo, is a Japanese actor, voice actor and narrator. His former stage name was Yuuichi Nagashima, he changed his stage name to Choo on August 23rd, 2006. He is a graduate of the Nishogakusha University Department of Literature and received training at Bungakuza's research establishment and the Seinenza Theater Company before attaching himself to Production Baobab in 1986. He transferred to the Tokyo Actor's Consumer's Cooperative Society in 2007.

Choo's hobbies include badminton and jogging, and he is a licensed calligraphy instructor.

(Source: Wikipedia)

The manga tells the story of a young man named Takeshi who was born to be a leader. Takeshi always dreamed of being a leader like his father Hiroshi, who was considered a leader among salarymen; however, when his father died, Takeshi became more determined than ever to become a leader like him, and after starting school for the first time, he decides to prove himself by becoming a leader to his classmates.
 

(Source: Wikipedia) 
Note: Chapter count and serialization data includes the 10 chapter Kanketsu-hen (完結編)