Kimura Kazuki deeply resented gambling.
What Ikioi Ito was doing was not even considered as gambling. It was as if he did it just to spend his money. With that in mind, he looked at Ikioi Ito, and with a soft tone, he asked, "How do you play this game?" As he was speaking to a person who was freely handing him cash, Kimura Kazuki's mood clearly had enlightened by a good deal.
After Ikioi Ito explained, Kimura Kazuki could more or less get the gist of it.
A typical Kendo match usually ended within a very short time, so the rules Ikioi Ito set were quite simple.
Say, a match took one second, and another took two.