Candy Color Paradox manga volume 2 features story and art by Isaku Natsume.

Kaburagi and Onoe still bicker constantly, but at the end of the day they’re firmly in love. But suddenly, Kaburagi’s sister Noriko shows up! Apparently, the two of them don’t get along very well…or at all, really. But Noriko does manage to hit it off with Onoe, and the two start hatching plots to knock Kaburagi’s ego down a peg or three…