Osaka Tōin High School
... that Osaka Tōin High School's baseball team became national champions in just their fourth year of existence?
... that <b id="mwCJo"><a href="./Osaka_Tōin_Junior_and_Senior_High_School" id="mwCJs" rel="mw:WikiLink" title="Osaka Tōin Junior and Senior High School">Osaka Tōin High School</a></b><span about="#mwt81" class="nowrap" data-mw='{"parts":[{"template":{"target":{"wt":"`s","href":"./Template:`s"},"params":{},"i":0}}]}' id="mwCJw" typeof="mw:Transclusion"><span typeof="mw:Entity">'</span>s</span> baseball team became <a href="./Japanese_High_School_Baseball_Championship" id="mwCJ0" rel="mw:WikiLink" title="Japanese High School Baseball Championship">national champions</a> in just their fourth year of existence?