O-Chan no Oekaki Logic

O-Chan no Oekaki Logic is a Japan-exclusive puzzle game based on the popular nonogram game. The game is considered to be a spin-off of Sunsoft's Hebereke series. Its first release was on the PlayStation on September 8, 1995, and would later be ported onto other platforms ever since. The game has received 2 sequels. It is the only game in the Hebereke series to feature Utsuzin as the main villain, rather than Unyohn. A European version, named Oh-Chan's Logic, was planned, but was cancelled.