in fact that's straight rail using the 2 red as OB1 & OB2 , the opponent CB being an obstacle . in japan & korea it's played with bigger balls (i believe 64mm) than the "normal" 61.5mm carom balls .
The Korean Version you see is played on a 8 foot table, balls 65mm in size. Your opponent's ball is a ball your cue must not touch during your shot or it is a foul and you lose a point. It is also a foul if your cue ball does not contact a red ball on the shot.
The Japanese version of straight rail 4 ball is easiest. No foul ball like in Korea. You can make a carom off of any 2 of the three other object balls. Your run stops when you fail to make a carom. More emphasis on herding the balls. I think France has a version but with 61.5 mm balls.
Here is some matches of 4 ball straight rail in Japan:
Their is a Baulkline game played with the 65mm balls in Japan. I think the table can be either 9 or 8 feet. Number of rectangles are 9 just like 47_2 Baulkline.