The first concept of Yoi series, mainly introducing Yoi's beautiful body and special skin.

It is not uncommon in YUTU to expand body to the scale of a chariot, a building or even a warship through the means of information transmission that directly reaches the consciousness itself, making countless sensors become the senses of consciousness, and making countless mechanical structures become limbs of consciousness. This is the basic idea of the core-type android. But to control a convoy, a squadron, or even the entire army with a single core of consciousness is not an easy task even for YUTU who is standing on the shoulders of the ringworld civilization. It not only poses challenges to a series of technologies such as information transmission, interaction methods, and conscious awareness, but also requires YUTU to answer such a question: To what extent should consciousness control a group? A widely recognized point of view is that the soul should be responsible for the formulation of macro-level strategies, while the more detailed strategies and the implementation of strategies should be in charge of the autonomous intelligence.
Based on this point of view, after a series of technical deduction, the core-type android which can control a whole army by a single consciousness had became possible. Yoi is the first android to apply such kind of design, becoming the first mobula spirit who was capable to control a whole army. Since he has a larger body surface area than ordinary androids, Yoi is also the first core-type android to apply skin communication technology.

The so-called skin communication refers to the transmission of various information through the contact between the android's skin and the full-body-wrapped equipment. This transmission can be based on light signals—that is, through the light-emitting and light-receiving system of the translucent skin, or through tactile signals—that is, the sucking, wriggling and micro-friction between the suface of device and the skin of user. The latter is The skin communication technology used by Yoi. Due to the obvious advantages of brain-computer interface, this technology is rarely used in core-type androids. However, the advantage of the body surface area of mobula android and the extremely high requirements for the channel width of "one man, one army" make the skin communication solution stand out.
When in the full-body-wrapped communication device, Yoi's tactile senses will communicate with other senses to processe tactile information information, and the operation information will be output through the active friction of the surface of the device through the ultrafine particle protrusions all over the skin. This method of communication requires a special skin, which is smoother and more sensitive than the skin of ordinary androids.It also requires a long period of calibration and running-in between Yoi and the device, so that the device can fully learn the usage habits of the little mobula.

INPUT CHANNEL SKIN
The white skin is mainly responsible for the input of signals. Although its area is smaller than that of blue and gray-black, its sensitivity is much higher than that of blue and gray-black. Therefore, its efficiency of signal transmission cannot be underestimated. Also due to sensitivity issues, Yoi's white skin is particularly delicate and he won't allowed others to play with it.

EMERGENCY CHANNEL SKIN
The situation of the battlefield is changing rapidly, and the amount of information input and output is also fluctuating violently from time to time. The blue skin serves as Yoi's emergency channel, at the cost of sacrificing some efficiency, so that it can not only receive input signals, but also transmit output signals, so Yoi can better adapt to changes in the battlefield.

OUTPUT CHANNEL SKIN
Yoi's gray-black skin is in charge of signal output. Considering the life experience of androids, too much sensitive skin will cause obstacles to daily life. Therefore, as the largest gray-black skin, its sensitivity is slightly lower than that of white and blue, but it still has considerable information transmission ability.

SELF-DISCIPLINE VERIFICATION CHANNEL SKIN
Yoi's fluorescent skin part has a very special responsibility. It is specially used to transmit information related to the status of self-discipline intelligence, so that Yoi can always ensure sufficient regulation of self-discipline intelligence, let these consciousless intelligent models be able to adapt to the high-pressure environment of the battlefield, and avoid extreme situations such as loss of unit control and even indiscriminate friend or foe.