RING NI KAKERO 2

Proper Japanese Title: リングにかけろ2 Originally serialized in Super Jump, this was a sequel to Ring ni Kakero (which at the time of its original publication was one of Shueisha's most popular series it had ever published). — Description from Comic Vine community (comicvine.gamespot.com · https://comicvine.gamespot.com/ring-ni-kakero-2/4050-93968/).