Hi! To avoid confusion, pulling a super rare does not guarantee the next 60 draws to pull the other super rare. Each draw gives you a small percentage of chance of pulling any of the ninjas available in the treasure including the super rare. However, player based data shows that there is a specific amount needed to pull super rares based on their respective treasures and that doesn't change after you pulled a Super Rare. What is guaranteed is that if you had pulled Madara as your first Super Rare, your second Super Rare is guaranteed to be Kurama and vice versa.

~Jib