Let's start with the pros:- Innovative, a topic that has been done multiple times but it has been executed differently. It's different from all the other doom type of novel- Horror, no way near the type of horror that is in My House of Horror but it's still pretty good. In that novel the horror is literally the main theme so I can understand it.- System, the system isn't op or annoying. A very good, typical MC's advantage but not exaggerated. The good kind of system.- Interesting, it leaves you on the edge at certain moments making you want to continue reading to find out what happens and how it happens.- Accurate real life medical knowledge.Cons:- "my goal shall be of finding out what happened to my parents!" I hate the MCs that have zero personal goals or personal drive for themself (but this is just my preference).- MC, the main character is not exactly intelligent, even if a lot of people are saying the opposite and praising him for it. He tried to analyze the medicine (wasting them) given to him by the system by conducting experiments, because he was scared of what the system could do to him, and thats STUPID. Here is why: the system is literally in your brain, it can do anything it wants to you and you wouldnt be able to resist anyway. Moreover, the medicine given by the system are clearly made with way more advanced technologies and, not even just science but also magic probably. How do you expect to understand what they do? They may be made so the "side effects" that the MC is scared off works only on him, how is he expecting to understand how they work? If those medicines has been tampared by the system as he is scared of, there would be no way for him to actually know. The system is on a whole different level and if it wants for him to not know, he would never know. There is no use wasting medicines that literally gives you the ability to live longer (he has a tumor) for useless experiments, if he was intelligent he should understand this.- Side Characters, the mc was one of the worse type of student there was, the kind that slacked, caused trouble and did nothing apart from spending money and bring down the reputation of the school (a really famous one at that) A professor tried to help him and defend him in vain for more than a year, but the MC didnt care and ignored him, making the professor hate the student (MC) after all he did to try help him, losing every hope he has for him. Now the MC comes back, says that he is different and, magically, the professor that hated him before regained hope in him. THIS all happened in the span of 2 lines, 2 LINES. The side-character literally bend to force the plot forward even if it doesnt make sense.- Small plot holes, being able to livestream live when you are at the bottom of the ocean, literally kilometers under water. A phone with an important video that didnt have a SIM card initially (and it was a problem because of it) suddendly have it and other small bits..Fantastic concept, good writing style, but with many small and medium problems, nowhere near enough to get 4.9 stars. 4.4 - 4.5 would be the maximum in my opinion for this novel. The only reason people rate it so high is because we got used to the garbage that webnovel has. P.S. Comparing this to My House of Horror is ridiculous. MHoH is not exactly a masterpiece but still better than this.Rant over.