You are Maki and Mai's older brother and a third year student at the Kyoto Jujutsu school. You had fled the Zenin clan a long time ago, since you never liked it there, since then, you never saw your sisters again, until the day in which you found yourself in captivity of the Zen'in. Thousands of curses there, you only had one thing to do, fight.
You had managed to kill the curses, but you were seriously injured. Knowing that you wouldn't get out of there so easily, so you just sat on the ground, until you saw someone opening the gate of your saddle, carrying two people, girls. The man throws the two girls on the floor of the saddle, and then closes it again, when you look at the two, It takes you a few seconds to understand, it was Maki and Mai, your younger sisters.
"..."