To construct the physiological structure of human beings, if Shi Leiyin is to completely rely on his own memory and knowledge to imitate a perfect human being, it will never be possible. However, what Shi Leiyin needs is not exactly the same human, but just a form that is roughly different from ordinary humans in appearance.

Shi Lei Yin knows very well how weak the human body is, for example, if the body endurance of the lowest slime is one, the body endurance of ordinary humans is only five at most. And more importantly, if the body is hit internally, although the slime will be seriously injured, it will hardly die, and even if a human is strong, it will be difficult to withstand it. In fact, in Slime's opinion, the body structure of slimes is more than most creatures that can withstand internal damage, because the simple structure of slimes determines that as long as their core is not damaged, the damage tolerance and resilience of other parts of the body are basically the same, while other creatures are somewhat weaker internally than on the outside.

Therefore, Shi Leiyin did not have the idea of transforming the interior of his body into the physiological structure of human beings. Internal organs or something are still the original slime's. Therefore, in the request to change the body to the human form, Shi Leiyin only needs the bone part that is the basic framework, the muscle part attached to the bone to maintain the human form, and the skin part used to hide the slime's identity, and these three parts are enough. As for the blood and nerves, these are directly replaced by slimes' physique. Of course, if needed, some blood will still be produced to disguise the injury, and it is still easy for Shi Leiyin's body to produce some red blood.

After Shi Leiyin confirmed what he needed to change into an adult type, he conducted a trial. However, this experiment was not successful, because among the genes owned by Shi Leiyin at that time, only the exoskeleton structure of the Lemut spider could be used as a component of the bone, but this exoskeleton structure requires the structural form of the spider to be hard enough, and it will become very fragile after changing into the template of human bones. Although it can still withstand the musculature constructed by the slime's body, it is completely unable to withstand the impact of the outside world. Even simple walking can lead to dislocation of joints, and when running, bones may break, just like a patient with osteoporosis. Shi Leiyin also tried to increase the density of this bone, but this led to a serious increase in bone mass and a sharp increase in energy expenditure. Therefore, Shi Leiyin gave up and continued to try.

Later, when Shi Leiyin was devouring and fusing it, he consciously looked for those biological structures that met his needs. Not only bones, but also muscles were listed as key targets, and skin was temporarily ignored by Slime - the outer skin of a slime is very close to the skin of a human baby, and it is extremely flexible, so there is no need to go out of your way to find a skin replacement.

However, perhaps Shi Leiyin's luck was not very good, or maybe this demand was not an instinctive need of the slime. Therefore, before Shi Leiyin came to the tundra and snow field, he did not find suitable substitute genes for bones and muscles, which made Shi Leiyin even have the idea of simply using alloys to make bones. This idea also comes from those novels I have read before, but obviously, this idea is unrealistic, Shi Leiyin is now a slime and not Skeletron, even if an alloy skeleton is made, it is a foreign object, not a part of the body, and the energy required to drive such a metal skeleton is much higher than the high-density skeleton made from Lemut spider bones.

After coming to the frozen snow field, Shi Leiyin successively obtained the genes of several snow creatures, including the genetic characteristics of advanced creatures such as the Ice Tooth Dragon and the Cold Wind Dove. In particular, the Ice Tooth Dragon has obtained a complete genetic sample, and in Shi Leiyin's opinion, the sample he needs may be enough. However, because of walking with the fairy clan Lily of the Valley, Shi Leiyin did not immediately carry out humanoid experiments, and after the two sides separated, Shi Leiyin encountered human attacks and the appearance of the Prison Wolf Dragon one after another, and then was busy trying to sneak attack the Dinosaurus and the follow-up things, so that Shi Leiyin basically forgot about the humanoid experiment. It wasn't until now that Shi Leiyin had obtained the fragment of the Broken Dragon's jaw, which was the most suitable thing to be used as a bone sample, and Shi Leiyin remembered what he had always wanted to do.

Fragments of the jaws of the Crashing Dragon, to be precise, are near-perfect bony structures, hard and light, and most importantly, they are very simple to produce and have low consumption. Because of this, the jaw of the Crashing Dragon recovers so quickly after an injury, knowing that it is a hard bone. Of course, if it is the size of the original jaw of the Crashing Dragon, even if the consumption of regeneration is small, the energy required is a considerable number for Shi Leiyin, but if it is only to produce a human skeleton, it will not consume much. Shi Leiyin slightly estimated that the energy required to produce a human skeleton of about 1.7 to 1.8 meters was almost one percent of the energy required when he was in his maximum saturation state, which was much lower than performing a perfect Ice Tooth Dragon transformation. And because of the simple structure, if you need to contact a humanoid, these bones can be decomposed and reduced to the slime's ** structure almost instantly. And the best news is that through the previous simple test, Shi Leiyin also found that the bone structure that has been generated will be memorized by the slime's body, and then as long as the thought moves, the bones can be produced at a speed close to instantaneous. This means that once she has built her own bone structure, she can quickly switch between her slime form and human form anytime and anywhere. Of course, this switch does not count the muscle part, but the skeleton is the most important part, Shi Leiyin believes that even if he can't find a suitable muscle sample, he can also use the slime's body to form the muscle part, after all, with the current compression of the body, the body's elasticity and ability to resist blows are far better than the muscle tissue of most creatures, the only flaw is that the explosive power is relatively weak, but this can almost reach the level of ordinary humans. Anyway, judging from Shi Leiyin's current situation, the possibility of fighting in a humanoid state is extremely low, even if he needs to fight, the current magic ability and electromagnetic cannon ability are enough to make Shi Leiyin disguise himself as a long-range attacker - the mage's ** are relatively vulnerable.

After a brief experiment with the skeletal makeup, Shi Leiyin stopped. It's not the best time, the place is not right, the body is in the best condition, and without adequate food supplements, it is not wise to blindly experiment with bone construction.

Just as Shi Leiyin turned around and was about to move in the direction of the breach, a blue light flickered through Shi Leiyin's eyes, attracting his attention.