This is a clash between a slow, lower-scoring home side that lives on three-point volume and a visitor that scores inside and gets to the free-throw line. KoGas swing between cold and hot shooting nights, while Wonju DB have been steadier in how they build points. The scoring margin per game favours the visitors clearly.
Wonju's two-point shooting is well above what KoGas usually allow, and the visitors have been strong on the road. They also won this same pairing by 26 points recently. Their weak spots are mediocre three-point shooting and a leaky paint defence, but KoGas have rarely punished that consistently.
KoGas's path is a very hot three-point night plus home court, and their low-scoring games show how they lose when the threes don't fall. Both teams are rested, and neither is on a back-to-back.
The game should stay close, with Wonju getting its edge from inside scoring and free throws, and KoGas's third quarter, its weakest, is where a lead can open. That is why I'm siding with Wonju DB to win outright.