I rarely bet Japan league but have much better luck in the KBO than MLB. KBO has one international pitcher and is usually stud & lights out. Their relief over there is trash. Worst than anything you are use to seeing. Often times that team will have a big lead and once stud is being replaced live bet other way +3.5, 4.5,5.5...Against teams Kia and Samsung this was $$
I tried it last night with a +180 team down a run at home in the 7th. Failed but worth the chance.