Ren Nanahoshi is a lonely college student who isn't good at communicating with others. He remembers the thrill of watching a live band perform when he was young, and spent most of his days searching for his own identity. One day, while singing karaoke alone, two boys named Yuuto and Wataru discover Ren's singing ability. The two agree: "This is fate. Let's start a band!" Ren promptly runs away, but fate indeed steps in, and their journey begins.

Battle Programmer Shirase, also known as BPS, is a free programmer with super hacking abilities who doesn't work for money. What he does work for is certainly something that only people like him would appreciate. But, his demeanor certainly doesn't suit the jobs he is hired for. With the evil King of America causing trouble via the internet, Shirase is nothing but busy as each new adventure brings even more interesting people into the picture.

Based on Mark Twain's famous book about the adventures of young orphan Huckleberry Finn.

Based on the comics by the late Nekojiru. Contains 23 animated shorts aired TV Asahi Network's show "Bokusho Mondai Boss Chara Ou." and 4 unbroadcast episodes.