[quote=@Madani]
I'll explain about Magic later. I'll just state the obvious for now.
[/quote]

A week had passed since the day I said that. Since I had nothing to do, here is it:

[hider=Fundamental of Madou]There are two types of Madou, one used by Mages and another for domestic use. Madou, in a sense, is a device that convert [Pure Energy] into other form of energy. Madou consisted of three inner-devices, these are [Pure Energy Bank] (PEB), [Pure Energy Converter] (PEC), and [Pure Energy Absorber] (PEA).

There are two types of [PEB], one is called [Internal Pure Energy Bank] (IPEB) and [External Pure Energy Bank] (EPEB). [IPEB] are [PEB] that equipped directly into the Madou whilst [EPEB] are not, which is similar to power-bank for cellphone. To put it in perspective, [IPEB] are primary memory (RAM) and [EPEB] are secondary memory (HDD) for computer. [EPEB] also has [PEA] on it to refill energy similar to a Madou but without a [PEC].

[PEA] work as a brake or stopping mechanism. When told so, it will re-convert and dissolve the produced magic or energy back into [Pure Energy]. In case of the Madou is running out of energy, [PEA] will passively refill the [PEB] by absorbing nearby [Pure Energy] in the air. 

[PEC] are the mechanism that produce magic or energy. [PEC] on domenstic-use Madou is preset and only able to convert [Pure Energy] into determined energy such as wind force, electricity, fire, etc. Meanwhile, mage-use Madou will convert [Pure Energy] into form of Magic. Every action of mage-use Madou are controlled by the user's will and mental state. Madou detect this through the user brainwave. The user's brainwave pattern and data are registered in advance upon equipping, making other people unable to use it. If the user are mentally weak, the less powerful/complex magic can be produced as the user's mind will be the core of the magic mechanism.

Madou shapes and size varies. Old types tent to be bigger, akin to generations of computer. As time advance, smaller and stronger Madou are produced.

Trivia: The name Madou comes from the Japanese word 魔導 which consist of the word [Ma (Magic)] and [Shirube (Guide or Guidance)]. This actually meant as placeholder until we (Me, and Haruna) come out with better name, but eventually used as official name instead. Incidentally, same happens with the term [Pure Energy] as it also start as a placeholder.[/hider]

Man, I'm starting to forget what else to say about Madou. Any question?