Denshanai de Now / 電車内でなう。

Now in the science series. "...the battle of the dockers!
It's morning, the train's on its way to school. Our hero, Ishido Ryuhei, takes on a bully who's been pawing at a girl.
The same evening, a man appears in front of Ryuhei accompanied by that hooligan. Calling himself a master bailiff, he sees in Ryuhei a capable master bailiff and challenges him to a competition that shows who is stronger.
And if Ryuhei refuses, 24 hours a day and every day he will be pursued by hooligans.
The hero is reluctant to agree.
The spirit of men's rivalry lights up - the fight of the dockers begins, now.