Kubo Takeshi is a student at an unnamed Japanese university. He's an enthusiastic tennis player and a member of his school's tennis team, the Wood Peckers.
His life takes a truly curious change on one late evening in 1982. A twist of fate sees Kubo reuniting with Tanaka, an old high school friend, after Kubo leaves a bar in Shinjuku's My City department store. Unlike Kubo, Tanaka focused his energy on chasing the path of the otaku.
Kubo is brought into Tanaka's circle of friends, which causes the wheels of fate to turn. Kubo's direction in life begins to turn toward a new goal. He begins his journey down the road of the otaku and, ultimately, the Otaking.
- According to Gainax, Kubo's given name is read as Takeshi. The name is written with the same kanji character as Ken1).