Furrystill an Orc in This Life

In a chaotic world, a boy who was originally a human became an orc on his fifteenth birthday after enduring great pain. A pair of eyes that peer into all things caught the attention of some people, and the mysterious brother returned home. Unreasonable things happened around the boy one after another. At the same time, an orc who claimed to be from another world appeared, and his target was obviously the young man. He called the young man his property and called the young man's brother his younger brother. What is the boy's identity? The boy's brother takes him on the road. The brother seemed to be carrying out this plan, and he found that everything had changed. The plan seemed to have failed. What should he do next? With one boy and two seemingly invincible people, what will happen to the three of them...