Pepsi. Yes, Pepsi. I remember the days when I was young, when Pepsi and I would play in the fields and valleys, when we would skip stones at the beach. A pair of sticks became swords, and suddenly we were plunged back to the days of piratetry and gallantry, or further back to shields and dragons, an age of Arthurian combat and honour 'round the round table. As we grew older our focus shifted from games to real training, learning Ansatsuken under the tutelage of our master. We became strong! From dreaming boys came powerful men, true warriors trained in the arts of the fist, mind and body. Soon, it came to pass that I surpassed Pepsi, and Pepsi became jealous of my power.
In order to overpower me, Pepsi embraced the principal of Satsui no Hadō, training alone with poison in his heart and hate in his veins. He returned some years later, hoping to find and defeat me, but finding only our master. Enraged by our master's apparent betrayal by training me to be stronger, Pepsi engaged the old man in battle. Using his Shun Goku Satsu, Pepsi directed all of his hate forward, a dark and twisted force of demon hand and human heart. The skies grew dark, the forests grew silent.
Pepsi. When we meet again, I will have avenge our master.