RF Online - "The beginning to the new world"
 
 
“Other world’s strength is also my ability!”
The root of summoning skill, which only the Cora race know, can be found in the force they use. In other words, summoning skill is one of force skills. To summon, it starts out by distorting an area, and through that distorted area comes the Animus.
The Animus and Cora race have an agreement of master and servant relationship. That is, Cora race can control Animus as if their servant. Animus has no right to choose their master and should always obey their master at all cost. So the summoners prefer to have an Animus who can fill in their empty space. Such Animus’ can raise a single but special ability. For example, The Paimaon which is a Sword Animus is optimized for close combat. And Cora race call the supreme Animus ‘Amy Animus’. (Amy means fourth dimensional genius)

An Animus gets different names in different stages of growth, and every time their name changes, they also become stronger in both external and internal ways.
Paimon inherit spirit from the sword. They have brilliant fencing ability, and their sword differs by their competence. What's more, Animus has the most outstanding combating skills in history, so they were performed as a valuable war material in the war of the Cora race. The greatest sealed sword Animus is called the Sword Animus. Cora race have historically tried to break the seal in order to obtain good swords and armors. The Sword Aminus is called Paimon. Paimon is the bravest of all Animuses, can handle all kinds of swords freely, and shouts to the opponent to frighten them.
[Growth and appearance]
Huge sword, greatly developed upper body is the form of a true masculine knight. They have a special feature of changing swords for different classes.
 
[Animus’ trait]
Just like their sense of strong appearance, they can treat “strong defense” as their main weapon. Defending all the attacks with their body to protect their summoner, they can be considered dignified.
[Amy’s attacks]
When the Aminus’ level reaches 50 and become an Amy sealing forcewill be used periodically.