Martial Arts

Summary
In this ‘strength-dictates-all’ world, an individual’s level of power determined his or her future. The only way for ordinary people, or rather, commoners, to gain recognition was to raise their combat prowess. Being able to learn martial arts was their greatest blessing and also the best path they could take. Nobles usually monopolize the stronger and greater arts.
 * The 4 seasons is a perfect comparison to it. Each link describes how.

Nurturing

 * The accumulation of the physical body’s potential.

Training

 * Uses potential points for a technique to increase specific attributes that the technique can only provide. Basically temper body/adjust attributes.

Amassing

 * Able to modify one's vital frequency, changing the essence of one's life and thus allowing for communication with the ether particles.( Has to do with first transition/ or job change in RPG games.)
 * There are two types of categories to do so and each category has many different ones underneath it. Both types are required for a Job change and a different combination from both categories makes different kinds of jobs available. Some are stronger while others are not but not suitable and some are weaker but it is suitable. MC got the best of both worlds.

Killing

 * The real techniques used for combat, purely with the scope of destruction – techniques meant for killing opponents.