Naruto Yahiko's Life Simulator

If you are hurt, you will remember hatred. If you hurt others, you will be resented, and at the same time you will receive harsh punishments from guilt. However, it is precisely because of the pain that you can treat others gently. Only when people know the pain can they grow, and the so-called growth is to be able to directly consider what to do, know the pain, think, and get the answer. --Jiraiya