"After completing your task and managing your report, you will be considered legitimate." Those were the words that came out of Riley's mouth when he had asked what would happen after the mission.
He was shocked when he caught something from the corner of his eyes. Ogre nearly beheaded him at that point if he had not looked back at that time.
He was very surprised by the sudden assault so he lost his balance and took some time to recover and continue his fight. Ogre was disappointed that he had not accomplished what he was after at that moment but he was happy anyway that he had displaced the little boy.
His blow would have been deafening if it hit Rin. The blow alone would be enough to place his head beside his uniformed body. When he swung the sword towards him, Rin jumped forward and rolled to the ground. With that move, he saw Ogre come for him to strike him twice again but he saw him on time and acted as was expected of him.