no. According to the official website of the game "Emperor's Growth Plan 2", in the discipline of Xiang Yu in the game, the concubine's favor reaches 45 to get all the rewards, so it is not necessary to reach 5. The Emperor's Growth Plan 2 is a strategy game, which is a kind of game developed by the flounder team after the Beauty Girl's Growth Plan, the Superstar's Growth Plan, the Empress's Growth Plan, the Emperor's Growth Plan and the Empress's Growth Plan 2.