Devil's Blade: Opening the stripe can only live to be 25 years old, why can Yuanyi live to be 80 years old? Personally, I think that the need for plot development and the setting of the marking ability determine that some of the characters who hold the stripe will not live to be 25 years old, and the following is explained in detail.
In the worldview of Ghost Blade, humans are already in a weak position, and if Hara, the holder of the stripe and the first user of The Breath of the Sun, do not live long enough, the plot of the Ghost Blade will not be able to unfold smoothly.
The worldview of the Ghost Blade is actually not complicated, and it is still an old-fashioned struggle between ghosts and humans. Since the ability advantage of the ghost on the setting is extremely obvious, it is natural to be able to make the human side have special ability to fight and fight with the ghost.
In fact, the design of this type of hot-blooded anime wants fire, the design of the combat system is very important first, as the natural holder of the stripe and the creator of the breath of the sun, if he does not live long enough, he can only live to the age of 25 after opening the stripe as his brother said, and the follow-up plot will not be able to unfold smoothly.
From the perspective of the setting of the ghost extinction, the people in its world view want to use special methods to improve the ability of various aspects compared with the ghost, and the more effective is two paths: one is that the spot holder opens the stripe, which can allow the user to greatly enhance the personal combat effectiveness in the case of causing huge consumption to the user's body, and the other is to use the special breathing method to enhance personal ability, and the breathing method and the stripe have fewer side effects than the stripes.
These abilities were gradually spread in the human range after their original appearance, but due to the extreme difficulty of mastering the markings and breathing methods, the overall combat effectiveness of human beings is still weak compared with ghosts. If Yuan Yi can't survive and receive a box lunch at the age of 25, human beings will basically be in a weak position in the face of ghosts forever.
If the original intention did not meet Tanjiro's ancestors and died early, the sun breathing method could not be passed on, and the various breathing methods that evolved according to the sun breathing method could not be naturally passed on to humans who resisted ghosts, and the frequency of markings was not high enough.
Personally, I think that an important reason why Haraichi has lived so long is to maintain the high-end combat effectiveness of human beings in the Worldview of the Ghost Blade, after all, not everyone can have the ability to have markings + breathing of the sun + penetrating the world at the same time as Yuanyi, and in the case of original intentions, they can try to avoid the situation of humans being affected by high-level ghost pots, and they can also try to inherit their combat experience and the use of special abilities.
Otherwise, once the original death time is too early, the role of human beings who have not yet cultivated enough strength to fight against the ghosts will undoubtedly be a disaster. The fact that Yuanyi can live for a long time is actually the author's consideration in terms of plot development.
The so-called holder of the stripe does not live to be 25 years old, and the claim that the so-called holder of the stripe does not live to be 25 years old, which is aimed at humans who passively obtain the special ability of the stripe, and the erosion effect of the character who is born with the stripe will not be as exaggerated as that of ordinary humans.
The setting of the markings in the Oni Blade is somewhat similar to the spell mark studied by the Great Snake Maru in Naruto, where there is a race that can use natural energy (shigego clan), and the great snake maru has developed a spell mark based on the characteristics of shigego's ability.
The subordinates of the Great Snake Maru were able to gain the advantage of opening the spell seal to increase their ability for a short period of time by transplanting the spell seal, but the more they used the spell seal, the more corrosive the ninja's body would be, while the Shigego character's adaptation to natural energy did not have this side effect. Considering the advantages and disadvantages of the Marking ability is considered to be very similar to the ability setting of the Spell Seal in Naruto.
There is a setting in the ghost extinction that can make the surrounding humans open the markings at the same time after launching the markings, which is very similar to the mistakes of the Great Snake Pill in Naruto after studying the spell seals, in fact, it is the difference between congenital and acquired, for humans who passively move the marking ability, the price of often using this ability to increase their own ability is far more than the character who was born with the marking.
For example, the original meaning of its body structure is definitely different from ordinary humans, and the ability to bear the damage caused to the body during the use of the stripes is far beyond ordinary people, and the original intention can control the stripes significantly more than the ability to passively obtain the markings, and the natural life expectancy is very long.
The rock pillar of the ghost killing team also opened the markings, although more than 25 years old, but people use the markings to increase their own ability and the wood has died and still survived, it can be seen that the so-called striped holders do not live to be 25 years old This statement will not be fully established, and should be related to the user's own physical condition and other influencing factors (such as the frequency of using the markings).
The purpose of introducing this concept is actually to balance the demand for strength, otherwise according to the setting that the opening of the stripe will spread to the same kind of use, the overall strength of human beings will be too obvious without adding the ability to adapt to the restrictions, which is not conducive to the reasonable development of the subsequent plot.
Finally, to sum up, the reason why Yuanyi can still live for so long with the markings, I personally believe that on the one hand, it is to maintain the coordination of ghosts and human combat effectiveness, and the original ability is stronger than that of humans, if Yuanyi can't pass on the special shooting method he has mastered to the human descendants, there is a high probability that he can't beat ghosts.
The second is that the original intention as the first marking holder has a significant physical condition and other humans who passively open the markings. The effect of ordinary human body recovery after opening the marking is not as strong as the original intention, and the natural life expectancy is relatively short. Please forgive me for the place where the analysis is not in place, and if you have other ideas, please leave a message to discuss.