(There is a sharp pain in your heart.)
(This diary seems to have a kind of magic. Although the diary is not very clear, you can still truly experience the heart-wrenching emotion of "I".)
(You overthrow all your previous guesses about "I".)
(The reason why you see the folding bed as a cardboard box is that you haven't substituted yourself into the role so far.)
(Since you traveled to this world, you have always considered everything from the perspective of an onlooker and as an Earthling. You have never experienced the mood of the characters in this world.)
"I" is impossible to regard the natives as pets. "I" never think of myself as a pet. "I" am a person who has serious doubts about my own identity.
(Substitute yourself.)
(Suppose on Earth, you are a clever chimpanzee. Your mother teaches you to write and teaches you "dignity", "freedom", and "love".)
(You start to think like a human being. You think that you, like your mother, are a human being.)
(Until one day, your mother sells you.)
(Humans tell you that you are not a human being. You are just an animal, a chimpanzee.)
(Chimpanzees have no "dignity" or "freedom".)
(You are just a plaything of humans.)
(You are just a test subject of humans.)
(Your mother doesn't love you. She just wants to know if humans can train a chimpanzee who can understand and speak human language.)
(In the end, you can only end up alone and be used and become a tool for others to show off scientific research results.)
(Because of you, it is very likely that your compatriots will have to endure the pain you once endured together.)
(The above is the story that the entire copy world wants to convey.)
(Humans in the copy world are like chimpanzees on Earth.)
(And the native residents are the masters in the copy world.)
(Just like "I", in the eyes of the natives, you are just a slightly smarter chimpanzee.)
(You finally calm down your emotions.)
(You continue to search in the small box. You find a box of pills under the diary.)
(There is no label on the box. There is only a blood-written prompt left by "I".)
("Eat it".)
(You open the box. There are only three red pills inside.)
(You take out a pill and swallow it.)
(You feel extremely hot all over. In an instant, you turn into a black-haired monster.)
(You haven't lost your rationality. You feel that your strength and speed have been greatly improved.)
(You run all the way.)
(You meet a member of the security department.)
(The security department fights with you.)
(You actually subdue the security department. But you are also seriously injured.)
(You take off the mask of the security department.)
(Soon, more security department members appear around you.)
(They punch and kick you and even hit you with electric batons.)
(You struggle hard. But you can't beat so many with your two fists.)
(You want to try your limit.)
(You are injured all over and escape from the encirclement.)
(The people from the security department call the elephant repairman for help.)
(The repairman lifts the big hammer in his hand and smashes it on your calf bone.)
(You fall to the ground and struggle with the repairman.)
(You can't compete with the repairman. But your strength is at least twice as much as before.)
(You suddenly feel weak.)
(You turn back into a human being.)
(The repairman's hammer falls and smashes your head into pieces.)
(Your eyes are blood red.)
(You are dead.)
(The deduction ends!)
Gu Yi opens his eyes and silently rubs his temples.
There is a potion on the second basement floor that can temporarily turn himself into a monster. But there are at most three potions. The effective time of one potion is only about three to five minutes.
This is a non-renewable resource. Gu Yi needs to allocate it well. Just now, he got the potion in the deduction and used it on the spot just to test the performance of the potion.
"Okay, here we go!"
Gu Yi's eyes shine and he walks out of the toilet.
With so many deductions, it only takes Gu Yi less than ten minutes to successfully come to the hidden small room on the second basement floor.
After getting that bottle of medicine and "I"'s diary, the system also gives a prompt.
"You have found an important item [Blood-Written Diary]."
"Your plot exploration degree is increased."
"The current exploration progress is 31%."
"Your talent skill level is increased."
"You have obtained a new ability, deduction retrospective!"
"You can retrospectively deduce from any time point in the last deduction. The mental strength consumption during the retrospective period is halved."
Deduction retrospective?
This seems to be a good ability.
Gu Yi doesn't have time to test his new ability. He quickly leaves the basement and returns to the first floor.
The free activity time is over. Gu Yi goes to the cafeteria for a meal as usual.
Gu Yi takes a look at the pig-headed chef and thinks about whether he needs to obtain their masks. But in the end, he gives up this idea.
The chefs always wander on the above-ground floors. When exploring the underground floors, the pig head mask may not be very useful.
Rather than focusing on the pig head mask, it is better to focus on the elephant mask and the dog head mask.
As long as you have these two masks, Gu Yi will not be suspected no matter where he appears.
Now, Gu Yi has red pills. He should have enough strength to pick up the elephant mask in the general affairs office on the third floor.
The best time to obtain the elephant mask is at midnight.
Gu Yi stays quietly in the ward. Until midnight, he opens his eyes.
"Start deduction."
(The deduction begins!)
(You get up from the bed and wake up Xu Nian.)
(Xu Nian expresses his concern for you. After you soothe him for a few words, you skillfully change into doctor's clothes.)
(You pass through the corridor and come to the third floor.)
(The light in the dean's office on the third floor is off. Obviously, the dean is not at home today.)
(You come to the general affairs office through the ventilation duct.)
(There are two unattended elephant masks on the table.)
(You take out a red pill and eat it. You turn into a monster.)
(You successfully pick up the elephant mask and put it on your face.)
(You feel that the mask doesn't weigh much on your face.)
(You wear the mask and search in the office. Finally, you find the work manual belonging to the repairman.)
([Repairman Work Manual])
(1. When working, please wear the elephant mask at all times. It will greatly increase your strength.)
(2. Sometimes, you may see various strange creatures on the equipment. If you find them, please kill them immediately.)
(3. If you encounter equipment that cannot be repaired, knock it twice with a hammer.)
(4. There is a master key behind the incinerator on the first basement floor. Please return it in time after borrowing it.)
(5. After work every day, please put the mask in the office. After leaving the workplace, do not disclose any information about work.)
(6. Mondays, Thursdays, and Sundays are payday. Please go to the dean's office to collect your salary on time.)