Collection of Interracial Girls

In the year 2546, in this cyber-style city, the coexistence of human races and alien races is nothing new. But Tianyang City is an exception. There is not even a trace of a foreign race here. My name is Xu Nuo, and I am the most ordinary high school student in this city. I have no magical talent, and I simply cannot afford those mechas made by humans that are comparable to magical power. Then, my parents disappeared when I was in high school... So, my biggest wish every day is to finish high school and graduate quickly, and then find a part-time job to eat and drink. Until that day, I accidentally gained immortality and was also bound to a system. What kind of plot in a novel... Actually happened to me! As soon as I returned home happily, I found a silver-haired vampire girl shouting at me expressionlessly: "Master." I thought it was an hallucination... And went straight to sleep. As a result, the next day, a vampire loli who called herself my "sister from the past life" squatted in front of my house. On the third day, the eldest demon lady with blond hair and purple eyes lay directly on my bed... Looking at the room full of non-human girls, I was confused: "I just want to be a high school student who eats and waits to die. Why are there suddenly so many beautiful alien girls around me?" What's even worse is that they look at me as if I have some secret that could overturn the world. "What is this? "Collection of Alien Girls"? I'm not the big brother of the system. You really want me to collect alien girls! Is this a harem system?" "Asura field! Hatchet! Fortunately, I am immortal... Otherwise, I would have become Cheng's successor long ago..."