This Summons Book Is Just Outrageous

Lu Li, who only wanted to be a salty fish after his rebirth, picked up a torn book that had been burned in the back alley of a convenience store. The book says: "Use the blood as a guide and recite the incantation, otherwise?" He read it. Then he summoned a primary school student with silver hair and red eyes - the magical girl Illya, and also gave him a pendant Ruby with a poisonous tongue that could speak. What's even more outrageous is that this broken book also attracts villains from all kinds of worlds. The next page that cannot be opened contains a secret "waiting to be caught". The sand sculptures are taken care of every day, and the spiritual disasters should be taken care of; the summoned characters are more and more outrageous, and each one wants to stay by his side more and more. But... What about the system? What about my system? !