The First Time In His Life is the 312th chapter of the Kingdom manga.
Summary[]
The duel between Mou Bu and Kan Mei continues as the Qin general has managed to even the score by knocking Kan Mei back for the first time in his life. Mou Bu feels glad that the time has come for him to fight with his full strength.
Meanwhile, Mou Bu's lieutenants keep fighting to keep the Chu soldiers at bay, in order to give their general, the time to fight and defeat his rival.
Jin Ou comments that although Mou Bu is a true monster himself, there is no chance he could ever beat Kan Mei.
Kan Mei's strikes are fierce and with a very powerful swing of his mace he breaks Mou Bu's arm, gaining the momentum.