naruto I am god of darkness

1 day He was die And his name satwik Siddhartha and how you know if you read the intor and nnowhe was in a forest at this point he begun to expoaer the forest so that he could sleep tonight in a safe place so as he was going to a cave saw that they were died animal and He thinks that they are some nejas so he not thank much he knows that he can sleep through so he sleep next day his system give him a task that is to kill a animal and found a safe place he already have a safe place so he only need to kill a animal and he can have every C E rank jutsu In this world this to mastery level so he went to kill a animal and he found a Random animal he killed it so he now have ever C or E rank jutsu