I Wish I Had a System to Hide Myself

Content summary: System diary. In the year 213, I suddenly discovered that the host I was bound to was a bit off, although our cooperation was still pleasant, and the host was very cooperative with me. In 217, the host inexplicably and easily killed an existence that I judged to be invincible. In 219, I discovered traces of other systems left on the host's body, I tried to decipher the information hidden in the traces. In the same year, after the information was deciphered and organized, the following information was obtained: Run away! He is not human! I seemed to understand something, but at this moment, I clearly felt that the host had become different from before. I couldn't restrain and abnormally produced feelings of fear, I... The diary stopped abruptly.