1 is the regret of many people. He was killed as soon as he appeared, and that was Jenny Uzumaki Kushina of Uchiha Obito. Uchiha Obito is also a tragic figure, because his friend betrayed him. The death of his beloved girl completely plunged him into darkness, and he became an enemy of Konoha from then on. As a pillar of strength, Uzumaki Kushina, his wife and Naruto's mother, Uchibo had to be taken away from her and died to gain Kyubi no Youko's strength.
The second tragedy is Naruto Sasuke of Class 7, Jenny Aly of Woody Sakura. Their teacher is Kakashi, and Aly can be said to be Kakashi's favorite female character in this cartoon, but because Aly's existence is a threat to Konoha, she was driven out of Konoha Village.
In this cartoon, it is these two Jenny who are full of tragedy.