Past obito: KAKASHI WE NEED TO WAIT FOR MINATO-SENSEI COME ON!
Past Kakashi: I know now leave me alone I'm training.
Minato, there sensei arrives with Rin and they alstart training and learning new things. After a few hours obito starts to get tired.
"I'm tired can we stop pls!!!" Asked Obito "Sure! You can rest a bit" responded her sensei. When they got back to training, Kakashi and Obito had to fight each other.
After a 2 hours of the comrades fighting the young girl lost. Time 7 continued training for the hole day. After a few years they had a mission. An insedent happened on the mission and Obito got crushed by a rock and is so called dead.
2 years later Kakashi joined the anbu and known as the Copy Ninja. Kakashi had a mission one day and acsedently killed Rin. 3 years later thé Kiubii attack happened and both miss Kushina and Minato died.