time between worlds: 1 day in the world of immortality= 10 days in world of martial arts 

world of martial arts:-

qualification for martial arts: any health person.

talent for martial arts: the later the age of practicing martial arts the lower the talent.

cultivation stages: first stage body refining (physique forming, blood strengthening, skin refining, organs strengthening, bones hardening), 2nd stage meridian opening, 3rd stage innate.

warrior ranks: 

1- 3rd rate warrior: has begun development in at least 1 area of body refining.

2- 2nd rate warrior: has advanced in 2 or more areas of body refining.

3- 1st rate warrior: has developed at least 2 areas of body refining to the extreme.

4- expert warrior: has completed his body refining stage.

5- master warrior: has begun development on unlocking the 12 regular meridians.

6- grandmaster warrior: has begun development on unlocking the 8 extraordinary meridians.

7-innate master: has the ability to levitate in air.

average lifespan: expert 80y / master 100y / grandmaster 120y / innate 200y.

world of immortality:-

qualification for immortality: spiritual roots /or special physique /or innate stage

cultivation stages: qi refining > foundation establishment > golden core > nascent soul > spirit transformation > ???

average lifespan: qi refining 70y / foundation 200y / golden core 480y / nascent soul 960y / spirit transformation 1300y.