Kei's plot against Kaguragi Enterprises was revealed to have been known all along by Haruto's father. Chairman Kaguragi allowed Kei to proceed with his destructive plans in order to see how Haruto would deal with adversity. Oto and Haruto's relationship is mended when Kei's interference is exposed, but she still needs to deal with Tenma's father over their terminated engagement...
— Description from Comic Vine community (comicvine.gamespot.com).