Ace of Diamond
Due to its reputation as the main stage of high school baseball, Koshien plays a big part in many baseball manga series, including "Touch", "Cross Game" and "H2" by Mitsuru Adachi and in other author's works like Higuchi Asa's "Ōkiku Furikabutte" and "Rookies" by Masanori Morita and "Ace of Diamond" by Yuji Terajima. It was talked about in "Major" where Koshien is the aim of all high school baseball teams to play there.