Afterward, most of the series tells about Ryuuji being the successor of Kenzaki (as the latter was terribly injured and almost crippled), who competes in the Japan National Boxing Championship, where he encounters strong and deadly opponents, including Ishimatsu Katori (a comic relief, but also a strong fighter), Takeshi Kawai (who specializes in the upper jab technique; he is also a pianist and also likes to cheat) and Kazuki Shinatora (who specializes in the Rolling Thunder technique; he is a former kendo practitioner, who retired when he challenged his father due to his cruel training).