Bomba! manga features story and art by Osamu Tezuka.

Satoshi Otani is a quiet, introverted middle schooler who has a crush on his teacher Ms. Reiko Mizushima. When he learns that Mr. Kito, a violent teacher he despises, has proposed to Ms. Mizushima, his hatred wells forth. With this anger, he mysteriously brings forth a phantom killer horse named Bomba.