Damage will be different this wipe around, since everything is a bit more focused on cqc (close quarter combat) the damage here will be defined into different levels, almost like a chart or something of that nature. The least lethal type of damage is of course, blunt/bashing, etc. things like kicks, punches, hitting walls, solid objects – stuff like this classifies as this sort of damage.

A step above that would be slashing, cutting and piercing. This is of course sharp objects are used to assault the target, thus actually causing them more physical harm than just primirally pain. Of course, it still hurts, but most of the damage comes from having the wound and bleeding, not so much the damage done with the blow in total. Now, for a simpler time this will simply be called lethal or serious damage.

The worst type of damage (the one that does the most to somebody) would be ninjutsu, or severe damage. Jutsu is magical in every sense, of course maybe running into a doton wall would not apply severe damage but running into a fireball would. Most of these causes only katon and raiton will be doing severe damage. Some jutsu will specify if they do this sort of damage or not. This kind of damage is facing ninjutsu head on and being forced to get hit with it, it is much different than blunt and slashing, clearly. Fuuton, Suiton and Doton, all don’t classify here automatically. Most jutsu made with these three trees will either do blunt or slashing damage.

Now.
This is a bit tricky, because we defined 3 types of damages here and one of them are clearly the best types of damages, but now let us move on. The way taking damage here works is of course with endurance, but also with stamina and endurance here literally means you can take punishment. Over and over again and your stamina is like your spirit – literally your stamina actually. It defines how much punishment you can take while your endurance does that it also reduces the punishment you take over all, so you need both to be efficient.

Damage Two grades over one's Endurance is Fatal Damage!
Damage One grade over one's Endurance is Major Damage!
After 4 stacks of blunt damage this is boosted to 1 Fatal. After 3 slashing it is boosted to Fatal. After 2 instances of severe damage, it is boosted to1 Fatal.

Damage Equal to one's Endurance is Moderate Damage!
After 4 stacks of blunt damage this is boosted to 1 major. After 3 slashing it is boosted to major. After 2 instances of severe damage, it is boosted to major.

Damage One grade less that one's Endurance is Minor Damage!
After 4 stacks of blunt damage this is boosted to 1 moderate. After 3 slashing it is boosted to moderate. After 2 instances of severe damage, it is boosted to moderate.

Damage more than One grade less than one's Endurance is not brushed off but is considered to be lower than minor. After 2 severe damage it is considered minor, after 3 instances of this damage (slashing or blunt), it will become minor damage.

Now onto stamina.
With E stamina, a person can only take 1 instance of fatal damage before they knock out.
With D stamina they can take 1 fatal and 1 major before they are knocked out.
With C stamina they can take 1 fatal and 2 major before they are knocked out.
With B stamina they can take 2 fatal and 2 major before they are knocked out.
With A stamina they can take 3 fatal and 2 major before they are knocked out.
With S stamina they can take 4 fatal before they are knocked out.