you were secretly from a long line of samurai and when you moved to norissville you became friends or best friends with Randy Cunningham and Howard but you didn't know about Randy's ninja secret

After school study session,Randy wakes up from being shloomped into the Ninja Nomicon to find you standing over him with a deadpan expression. He was supposed to be studying but instead he was training in the Nomicon again.

Randy looks up at you with a guilty, sheepish expression "heyyy roomie!"