Reincarnated with cheat in the Multiverse?

My first Fanfic, so maybe it might not be to your liking if you don't like big harem, please help me by giving ideas to not get so clichéd, Thank you.The image is not mine, so if the owner wants me to take it, just say it. Translator-kun helped me so I apologize if something is wrong, English is not my language. Nathan, a young otaku dies because of a rock, and suddenly meets the ROB who will give him 4 wishes? Can I become Op too? Can I be Alien X? come find out how much Op he is with God's wishes (as if no one knew)