This is a very complicated topic so therefore it is best to describe the exterior situation first. There are four forms of power. One which is the power which the bonded demons receive after dying as a human. The second is the power unique to demons. The afore mentioned Sondio is an example of this. The hand-to-hand combat, Flashing Steps and magic element covered first are not however part of demonic power. These are all part of a power called reaper powers. This can be used by both demons and angels. Whilst in the instance of angels, their incantations praise God and themselves as well as pure souls in the garden of Eden in their incantation, and they trade their life force with God rather than the 12 original demons. This power CAN be used by either race however it is not the source of their most natural powers. Angelic students learn the powers associated with their own race first then reaper powers unlike demons who learn reaper powers. This is because demon powers require a great deal of willpower to control and many early demons who were bonded died from insanity because they attempted to learn it before refining their control first. The power of the angels is referred to as the power of the holy. Unlike both demon and reaper powers, their weapons focus more on firing weapons such as bows and arrows as well as fire arms as opposed to our common blades. The balance between the holy and demon powers is such that they are deadly to one another and will poison the body of their opponents if they are bonded to such power without the transitional power of reapers. This shall become relevant later.
To begin on the actual weapons there will be three main elements we shall focus on. Only the first will be covered in the basic course, the other two – in the higher. The first type is a part of the power of the holy which the angels use. Thanks to the Bureau of Research and Development it is possible for demons to acquire weapons aligned with this power just like angels. Whilst demons may use the magic and movement techniques of reaper powers with ease as they are minor powers and demon and holy power do not have their own form of magic. Weapons however are another matter as by accepting a weapon you must develop a separate spiritual entity within you – much like an inner-voice – which embodies the qualities you associate with power. Demons, regrettably are unable to do this without holy powers which is why you must be subjected to them through the medium of reaper powers upon the day you receive your weapon. So far, the only way in which we are aware that you may receive such contact is by bonding to an angel which already wields a compatible weapon and has already developed and mastered their spirit (more on that later). This means that you shall explore your own traits in class before using a summoning magic (class: binding) to create a bond between yourself and a compatible angel. By doing this you shall acquire a matching inner spirit and a carbon copy of the weapon possessed by your bonded angel with the same, powers, abilities, releases (more later) and more. It is from this point on that you shall develop your abilities separately meaning you share many techniques with an angel your shall likely see in battle but you shall also have your own unique techniques. This shall hopefully come in useful on the battle field as the angelic army is unaware of us using such a procedure and shall give us at least a slight advantage.
Releases and Abilities
Any blade of reaper power has the basic form of a sword. It then has a maximum of two releases which the user can learn which allows said user to access the powers of the spirit belonging to the blade. First Release changes the form of the blade into something more unique and will frequently have one or two powers using life force. These powers are somewhat like magic which can only be summoned when using the blade and simply mold a person's life force into a standard attack which requires little control and therefore doesn't not have the explosive quality of magic.
Second Release is a much greater change and usually expands the size of the blade and frequently it is no longer in blade form – it may become a giant warrior or an animal which projects poison. In general, however, Second Release is a power upgrade from the first and whilst most Second Release forms are expansion types used to affect a greater area of people, there are also compression types which increase the success rate of defeating any one opponent.
Some blades focus on using melee combat whilst others are tailored to a user who prefer using long-range magic attacks. Examples of a magical attack would be the concentration of a mass of life force in your blade for a second before slashing and shouting the name of the technique to create a cresent-shaped blade of magic which destroys that in its path. Depending on the control you use to compress the same amount of life energy the output of the magic shall be of different sizes – larger less potent, smaller more potent – allowing you to target both masses and individual combatants. You can also vary the life force used in each attack, however usually the main different in using the same attack occurs when using it in the two releases.
If the angel you bond to has yet to earn any of the releases you must also learn them. To achieve the first, you must simply use your blade repeatedly and learn the various techniques which it develops. For the second you must use your life energy to project your inner-spirit into the outer-world and defeat them in battle. Should you lose you must try again until you have achieved this. If your blade breaks at any point in time it may be fixed by molding it with your life force unless in the Second Release when you must bond to a new angel because your inner-spirit has died. Regrettably, the inner-spirit of the matching angel has not.
Demon Power
The demon power related swordsmanship covered in the higher course requires great control and willpower, as was already said. By learning reaper powers you acquire an inner-world where your inner-spirit lives. With demon powers there is no such world to house a demonic inner-spirit because said spirit is formed by the instinct in a demon's heart and therefore lives there. However said spirit will then attempt to overthrow the actual demon and control their body by dragging them to an inner-abyss where an inner-world is located so that the actual demon cannot fight back whilst he or she is being overpowered, leading to insanity.
There are four/five/six/seven stages of evolution for a demon. The insane basic level which everyone shall start at. Here you have no weapon and take on the form of an animal wearing bone armor and mask. You reach this level once the teacher places a spell on you to allow your instincts to grow. The crucial stage is where you must enter your inner-world for the first time and battle your inner-demon. Once you have defeated them you will have control over this form however if you lose they control your body and you must summon them to fight against you until you win. We may be forced to kill you should we be unable to restrain your inner-demon upon them taking control. The main ability of this form is that your instinct drives you to consume life force. That can be from your defeated enemies, or it can be done but suffering an attack but consuming the life force used to make said attack. This is not the same as taking it for your own – consider it a piggy bank that needs filling to get to the next level and upon reaching said level, it does not empty but increases in size meaning you must fill a greater volume. In the first stage you can disengage your form and have quick regenerative abilities. Consider these present in all forms unless stated otherwise.
The second stage is a sudden power-up where you temporarily lose access to any other ability save those used by this form. You gain the form of a giant-size mountain with legs hidden under a black cloth. Your neck becomes surrounded by bone thorns and your mask is individual to you and frequently reflects that of your previous animal form. To pass on from this stage you must consume more life force. The ability you can use at this level is a potent and powerful blast of red which takes several seconds to charge fired from your mouth. It is called Zero. In the second stage you cannot disengage your form.
Once you complete this and attain the third stage you can disengage your form once more however you still cannot access your other powers. You also have a new threat, if you do not consume enough life force quickly enough you shall degrade into previous forms. In this form you are much smaller however still larger than a human and in the shape of your animal. You no longer have bone covering all of you and you are much more physically skilled in combat. You can now develop your own demonic abilities associated with your body, for example, slashing the air with your claws to produce ten long blades of life force much like the a fore mentioned example using a blade, however this requires no weapons. You keep your mask however.
The next form is disengageable and the shape you take is that of a human except slightly greater in size. The majority of your armor vanishes, generally leaving a few plates and your mask. In this form you learn a quicker and less powerful form of Zero called Bullet. Zero can now also be fired quicker, from different parts of the body and can be different colours such as green. In general the differences in power of the previous stages were pretty steady, however the leap to this form is dramatic and gives you a very strong amount of power which can only be achieved by a few people with a LOT of POTENT life force (more later). This form is the pinnacle of pure demon power.
The next two forms are even harder to achieve as they mold your reaper powers to give you a second blade. Your original reaper powers may have the form of two blades already in which case consider this as simply an additional blade. It allows your inner-demon access to the power of the blade and unlocks all the powers you have learned so far to the demon as well. From this point on their shall look like a white-skinned version of your human form with black eyes and gold pupils. The real demon loses pretty much all of its mask and its remaining body armor – leaving for example a ring of bone around an eye. Using Sondio becomes easier and more natural than Flashing Steps and a natural ability develops called Hyde which is in essence derived from the body armor of previous forms which uses life energy to strengthen the skin through the cells as opposed to shielding it from the outside. From this point on few demons have quick regeneration as it is often sacrificed for brute strength. The sword you carry like reaper powers also has two releases – Resurrection and Resurrection: Second Stage. In both these releases you gain the animistic instinct and properties from your previous forms allowing you to have greater agility, power and reflexes. You will gradually look more and more like your signature animal. You basic form loses these elements during your power-up to allow you to no longer desire to consume more life force which is a dreadful experience. Very few people are known to achieve the second tier of Resurrection.
Unfortunately, angels have succeeded in tapping into demonic power and can summon a mask after bonding to a demon and achieve similar power to you. Like with our bonding, after joining your evolution of powers split off from one another.
Angels also have access to their inner holy powers and their main weapons are bows and arrows. Whilst we can use this power after bonding to an angel, the majority of weapons required to perform many of the techniques are pre-made and Hell contains few of them. Even then they are only given to the most gifted soldiers. The natural form of said bows is a bracelet with a pentacle charm. Upon actibation a bow mad of life force forms from it and arrows are fired at will. Skilled fighters can fire using one arm and directing with purely the mind. All holy power weapons vibrate so fast that they weaken the bonds between all life energy and absorb it to use as their own. The higher course shall teach additional weapons and the holy power techniques including the holy power movement and defense and attack techniques – Swift, Blood Vein and Blood Artery, respectively. Swift works similarly to Flashing Steps and Sondio, Blood Vein and Artery mix spirit energy with your blood. Vein pushes the blood into cells momentarily upon the point of impact to defend and artery quickly pumps blood to the areas you need it most when attacking.
Unfortunately, angels are also able to summon our powers in the form of a mask they create out of life force which provides them with a sword and techniques used by a demon. Due to the power it takes to control an inner-demon without being experienced with the nature of instinct already, few angels have made use of this opportunity.
Physical Techniques
Of course in addition to these techniques you shall need to learn physical techniques and styles of the sword. Kendo is one of the main ones. Other techniques teach you how to subdue your opponent, create a defensive barrier around yourself by quick slashes in succession, superficially graze your opponent, swing a blade by an attachment and fire in a form of darts before reeling the blade back in, shredding the opponent with multiple quick slashes, bisecting an opponent, thrusting a blunt object into the chest cavity, a powerful slash which has such speed that the after images vibrate to create a powerful stroke – as opposed to a single blade there is a greater are which acts as a blade, and many others.