"Add Uchiha Sasuke as a friend, get the chakra attributes: thunder and fire, get the blood inheritance boundary: Sharingan, and get the ninjutsu: Go Fireball Jutsu!"
"Add Hyuga Hinata as a friend, get chakra attributes: thunder, fire, get blood inheritance boundary: white eye, get taijutsu: soft fist method!"
…
When Uzumaki Naruto gains the friend system, as long as he adds a friend, he can obtain the opponent's chakra attributes, physique, blood inheritance limit, ninjutsu and taijutsu.
As a result, Uzumaki Naruto started the road of becoming a social butterfly in the ninja world. He would say to everyone he met: "Handsome guy/beauty, you and I hit it off right away. Do you want to make friends?"
