Samurai Japan will head home to the Premier 12 super round having completed a sweep of Group B with an 8-1 win over group host Taiwan on Thursday.
Both teams were playing for pride having already clinched a spot in the six-team round robin next week in Chiba and Tokyo.
Seiya Suzuki homered for the second straight game and drove in four runs. The Hiroshima Carp star opened the scoring in the first inning with an RBI triple. Nippon Ham Fighters on-base machine Kensuke Kondo drew a two-out walk. After a wild pitch, Kondo cruised home when Suzuki's drive off starting pitcher Liao Yi-chung got past the center fielder.