I Encountered Terumi Mei at the Beginning of Naruto:

I traveled through Hokage and became Uchiha Kagawa, who was of the same generation as Tsunade. It has been dormant like this for a long time, Slowly completed the task of system release. "Task submission completed." "Reward Sharingan Advanced Card." "Task submission completed." "Reward the Immortal Body." Finally, one day when I was out in action, System: "Released continuous mission: Go to Kirigakure Village with Terumi Mei." Okay, let's go and take a look. Mainly because I like Terumi Mei, not because I want to do tasks. This novel and its characters are purely fictitious. Any similarity is purely coincidental and should not be imitated.