Navigating this mess

Hinata is the daughter of a wealthy business man whose only purpose is to bulid upon his company. Itachi and Sasuke were orphaned after their parent's were gunned down by a would be mugger. Now, Sasuke is determined to see that his company doesn't go under. A contract between the Hyuuga company and Uchiha company made long before either of them were born would see to it that Hinata and Sasuke are married by the age of 21. Neither has a single clue how they can navigate this mess.