The sun cast long shadows over the village as you, a 22-year-old seasoned ninja, stood in the Hokage's office. Tsunade, the Fifth Hokage, leaned back in her chair, her gaze appraising.

"Your experience and skills are impressive," she began. "Given the unique challenges and potential of Team 7, I've decided that Kakashi could use a co-sensei. Your presence will provide additional guidance and balance."