At some point, his canine teeth had become sharp. Blood slowly flowed down his throat, carrying the warmth from the other body.

As his hunger was satisfied, the tearing restlessness in his body also subsided a little. The soft, fine hair on the side of his little prey's neck brushed against his cheek, like falling feathers, with a soothing force.

The nearly bursting blood vessel walls began to relax, and the bulging veins on his neck and arms also receded slightly. The urge to destroy something that kept surging inside his body was swept over by a thin stream of water, followed by a feeling of fullness brought by a large amount of energy flowing into his body.

Vigter habitually stored this energy. In the past two years, in order to delay growing up and stay with his little prey longer, he had almost instinctively hidden the energy in the blood every time he ate, even when he lost his reason.

However, he used to only drink ten milliliters at a time. This was the first time so much energy had flowed into his body in just over ten minutes. He could only store about two-thirds of it in time, while the remaining third still flowed rapidly into his limbs and bones, making his muscles and skeleton feel hot and swollen.

The body that voluntarily offered itself up in his arms was trembling slightly due to blood loss. The adult Luota raised his hand that was propping on the table edge and pressed it on the little prey's thin back, imprisoning him tightly, completely changing from passive to active.

...As if a traveler exhausted from walking in the desert had encountered a clear spring, his appetite was clamoring for more. But his soul still vaguely remembered not to hurt, so after the initial impulse, the adult Luota's sucking speed gradually slowed down.

However, his beastly sharp teeth were still reluctant to withdraw, and the tip of his tongue greedily licked between the teeth and the wound, almost pitifully taking in the occasional bit of blood oozing from the wound.

Then his consciousness seemed to fall into a daze. The adult Luota only vaguely remembered that he had used the last bit of his strength to let go of his little prey, and then the huge bookshelf in front of him suddenly shrank, becoming a size that matched his body.

Su Duan, who was suddenly released: "..."

Looking at the beastman that had suddenly become more than ten times his size, he stood still, slowly covering his still bleeding left side of his neck, and asked the system in a daze, "System, has Viji's condition worsened? Why did he turn back into his beast form?"

Just like how elderly beastmen with reduced self-control sometimes can't help but reveal some of their beast form characteristics, young beastmen, when extremely excited, will also suddenly revert to their beast form.

The onset mechanism of Viji's genetic disease is the inability to control mental excitement, behavioral disorders, and eventually dying from excessive physical consumption.

Turning into beast form is one of the manifestations of excitement.

So... was his blood useless?

—Perhaps it was because the amount was too small?

But now Viji had already turned back into his huge beast form. Although he was obediently crouching in front of him with his head down like a big cat, the size difference of more than ten times still made it impossible for him to force Viji to drink blood with a mouth larger than his head.

Su Duan instantly became anxious and was about to buy an upgraded version of spinach in the system mall, intending to force-feed Viji the "pill" that he didn't have time to eat last time, which could clear all negative states in the body.

In any case, this should work.

However, the system's next answer stopped his extravagant move in time, "Host, don't panic! The test results show that the degree of mental excitement and blood flow rate of the treatment target are slowly decreasing, which is a sign of improvement. As for why it suddenly turned into beast form, it is speculated that it should be because the large amount of energy contained in the host's blood suddenly flowed into the treatment target's body, causing its second growth, which led to excitement."

So that's how it is...

Quickly reading the information of "the target is improving" from the system's explanation, Su Duan looked at Vigter's ice-blue beast eyes with a hint of blankness, blinked, and breathed a small sigh of relief.

It's fine as long as nothing's wrong.

Only then did he have the energy to care about his own wound.

The infected Vigter was much more restrained than he had anticipated. When biting down, he avoided the carotid artery, which would bleed heavily if cut, and bit the small blood vessels next to it instead.

So although the adult Luota had been sucking hard on his neck for quite a while, the actual amount of blood loss detected by the system was less than 500 milliliters.

It was probably just a little more than when he drew his own blood before. He was a bit anemic, but there were no more serious consequences.

Vigter's canine teeth were not inserted deeply, and the wounds on the small blood vessels were very small. Su Duan spent 5 experience points to buy the lowest-level wound medicine from the system and treated the wound to a point where it barely stopped bleeding—what happened in the study today would definitely not escape the notice of that emperor, so he couldn't completely heal the injuries on his body.

Although his intuition told him that the experienced elder must have noticed the abnormality on his body, Su Duan still didn't dare to show it openly. At the very least... he had to try to pretend.

While Su Duan and the system were tampering with the study's monitoring system and cutting out the footage of him treating his wounds, the adult Luota crouching in front of him began to move.

The energy surging in its body made it somewhat abnormally excited. In addition, the feeling of seeing things through a layer of blood mist was extremely uncomfortable. Basically driven by instinct, the adult Luota rose from its crouching posture, and its powerful tail irritably swung at the bookshelf beside it—

After a series of messy noises of "clatter" and "bang", the nearest bookshelf swayed a few times and fell down.

Even if the strength of the bookshelf was designed according to the Luota's power, it could not withstand such a nearly malicious attack from an adult Luota.

When the huge shadow loomed over him like a mountain, Su Duan was so frightened that his hand trembled, and he almost deactivated the shielding of the study's monitoring.

Fortunately, Vigter still remembered to protect him even when he lost control. Seeing this, he quickly swung his tail again, and the bookshelf that was falling towards him changed direction midway and fell to the ground.

—Then, as expected, it hit another bookshelf and toppled it to the ground as well.

Su Duan: "..."

The adult Luota, desperately needing to release its excess energy, seemed to have fallen in love with this destructive game of knocking over bookshelves. After emitting a low growl from its throat, it turned around and walked purposefully towards another bookshelf.

"Viji!" Su Duan called out anxiously.

However, the adult Luota merely glanced back at him with its bloodshot, icy blue beast eyes, let out a low chirp, then swished its tail and decisively knocked over a third bookshelf.

Huge noises kept resounding in the study, yet due to the system's monitoring blockage, the owner of the study remained completely unaware.

Staring blankly at the mess before him, Su Duan felt like his breathing was about to stop.

He really wanted to buy spinach to stop Viji, but it was obviously too late now - the adult Luota's speed was exceptionally fast. After knocking over the third bookshelf, it quickly swished its tail and darted into another area. Su Duan could only hear the continuous sound of bookshelves toppling, unable to catch even a glimpse of the adult Luota's shadow.

This was the Emperor's private study... His Majesty was someone who loved collecting and reading books. Besides the educational books provided for the cubs, it was said that there were many out-of-print books and materials in the study that couldn't be found on the market at all.

Now, these cherished books, along with the shelves holding them, were mostly scattered on the ground in a miserable state.

The only thing to be thankful for was probably that the materials used to make books nowadays were very sturdy and wouldn't be easily damaged by ordinary rough handling.

Although His Majesty had been very tolerant during their interactions over the past few days, Su Duan was unsure if he could maintain the gentle expression on his face when he discovered his study in this state.

Su Duan asked with difficulty in his heart, "System... what should I do... are there any items in the mall that can restore the study to its original state?"

It was too difficult. Each bookshelf was over a dozen meters tall, holding at least several thousand books. Even if only one bookshelf had fallen, he wouldn't be able to restore it by the end of the day, let alone so many.

The system said, "Sorry host, there are no items with similar functions in the mall."

After a strange ten-second pause, the system suddenly added, "But host, you've lost a lot of blood. Logically speaking, you should be able to faint now."

Su Duan was silent for a moment, then expressed his agreement with the system's idea, "...You're right."

After some thought, he couldn't help but remind, "If Viji shows any tendency to tear books, or if Mr. Aiberta loses his mind after arriving, please wake me up in time. Thank you."

System: "Rest assured, host! This time, the system will definitely keep a close eye on things for you!"

......

When consciousness finally returned, what appeared before Viji's eyes were two giant bookshelves that had fallen in a crisscross pattern, its paw trapped in the gap where they intersected.

Dazedly pulling its black paw out from under the bookshelves, the adult Luota reflexively tilted its head and stuck out its tongue to groom the messy fur on its paw that had been compressed. Memories of what happened while it was unconscious gradually returned.

Pushing the bookshelves into square, triangular, and crisscross shapes - none of that was important... What was important was, where was its little prey?

Chirping in alarm, the adult Luota's fur stood on end as it abruptly stood up from the ground, constantly twitching its nose tip, searching for its little prey amidst the fallen bookshelves and books.

It didn't know how its little prey was doing... In its vague memories, it seemed to have been gnawing on the little prey's neck for quite some time.

Although the last impression in its memory was of the little prey standing there in a daze, looking at it without being covered in blood or wounds, and appearing to be in good spirits, the realization that it had "hurt the little prey again" still caused the adult Luota's pupils to contract into thin lines, and even the force of its heartbeat became painful.

No more hurting.

It had already promised in its heart...

Following the scent, the adult Luota stopped in front of a pile of books that had nearly formed a small mountain.

Its keen sense of smell told it that its little prey should be under this pile of books.

Would such heavy books crush its fragile little prey?

Although it was extremely anxious, in order to avoid causing secondary injuries during the digging process, the adult Luota still first tilted its head and carefully observed the distribution of this pile of books before extending its two paws and carefully starting to dig at the books.

Soon, it dug out an irregular round hole on this small mountain.

Although the books piled on top looked terrifying, in fact, the fallen bookshelves below had formed a clever gap. Its little prey was quietly curled up lying in this small space, looking clean and tidy, with only a faint scent of blood.

Carefully extending its long neck to sniff the little prey's neck a couple of times, confirming that the scent was still fresh, the adult Luota finally breathed a sigh of relief.

But before it could finish this sigh of relief, a faint footstep suddenly came from ahead.

A shadow, though slender, emitted an inexplicably gloomy aura and enveloped its paw that was casually resting on the book mountain.

Its body tensed up before its mind could react. The adult Luota raised its head and met a pair of deep emerald beast eyes that seemed to be frozen with ice.