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Yōichi (よういち Yōichi) is the captain of the Nekketsu High School Hockey Club. His first appearance in the Kunio-kun franchise is in Ike Ike! Nekketsu Hockey Bu: Subette Koronde Dairantō. He seeks Kunio's help in improving and strengthening the Hockey Team and win the championship.
Yōichi makes a brief cameo appearance in Nekketsu Kakutō Densetsu. He can also be unlocked for use in River City Super Sports Challenge ~All Stars Special~.