What is the fine-grained topic of the following text: Touch ( Japanese: タッチ, Hepburn: Tatchi) is a Japanese high school baseball manga by Mitsuru was originally serialized in the weekly manga magazine Weekly Shōnen Sunday from 1981– 1986, and sold over 100 million copies, making it one of the best- selling manga series. Only return the topic.
Touch Manga Series by Mitsuru