Internal Force

Biodata

Feature	Details
Name	Internal Force (内劲)
Classification	Martial cultivation power and realm system
Associated realms	Mingjin, Anjin, Huajin, Danjin, and Gangjin 46
Primary prerequisite	Blood Qi cultivation; Internal Force may be born after Blood Qi reaches a critical threshold or sufficient quantity 9

Power Progression

Stage / Realm / Level	Chapter	Notes
Blood Qi threshold	45	Zhang Su reaches 1,000 strands of Blood Qi—the stated true limit—after which Internal Force is guaranteed to emerge naturally.
Early-stage Mingjin	46	Internal Force is born from Zhang Su’s 1,000 strands of extremely rigid, yang-aligned Blood Qi; his system panel records Early Stage Mingjin.
Mid-stage Mingjin / Small Three-Union	66	The three Yang Internal Forces merge into the Small Three-Yang Force, allowing Zhang Su to unleash Anjin despite remaining at the Mingjin stage.
Late-stage Mingjin	97	Zhang Su is recorded at late-stage Mingjin after perfecting the Three Yang Divine Arts.
Anjin	98	Zhang Su breaks through to the Anjin stage while pursuing balance between the Three Yang and Three Yin Divine Arts.
Mid-stage Anjin	108	His simultaneous cultivation and fusion of Yin arts advances him to mid-stage Anjin.
Late-stage Anjin	109	Perfecting the Taiyin Divine Art raises Zhang Su to late-stage Anjin; his Internal Force is described as more than twice as thick as it was at mid-stage.
Huajin	109	Zhang Su fuses Yang and Yin forces through a four-in-one process, comprehending force transformations and advancing to Huajin.
Danjin / Baodan	121	A six-in-one fusion of three Yin and three Yang divine arts forms Pure Yang Force and advances Zhang Su to Danjin.
Gangjin, inner and outer as one	145	Zhang Su reaches the pinnacle of Gangjin, where Gangjin can cover both exterior and interior without bodily weak points.
Perfect Gangjin	153	Zhang Su fuses Primordial Unity Gangjin with Taiji Gangjin, using a trace of Spirit Essence to form Perfect Gangjin.
Postnatal Internal Force Realm	154	Nine divine arts become one, converting Taiji Primordial Unity Gangjin into Taiji Primordial Unity Internal Force and elevating Zhang Su to the Postnatal Realm.

Formation and Cultivation

Internal Force can be produced through two recognized routes:

Method	Process	Result
Blood Qi tempering	Blood Qi is refined over years until its quality reaches the necessary point.	The conventional method, but it can take decades and leave Blood Qi Realm Ninth Layer martial artists unable to advance. 9
Blood Qi accumulation	A cultivator breaks the body’s limits and amasses unusually large quantities of Blood Qi through top-tier or peerless cultivation arts.	Internal Force forms naturally and possesses greater potential; peerless techniques can cultivate more than 500 strands of Blood Qi. 9

A total of 1,000 strands of Blood Qi is described as the ultimate limit. Reaching it guarantees the eventual birth of Internal Force, though the transformation still requires time to occur naturally. 45

Second Limit Break

A cultivator who reaches 1,000 strands of Blood Qi has completed a second limit break. The resulting Internal Force is stated to exceed ordinary Internal Force in both quantity and quality. 46

• It can accommodate Internal Force techniques of different attributes without the usual risk of attribute conflict. 51
• Zhang Su’s second limit break gives him Internal Force reserves comparable to a mid-stage Mingjin martial artist despite initially being early-stage Mingjin. 46
• His Yangji Blood Nourishing Technique also causes his Internal Force to inherit an extremely rigid, extremely yang attribute. 44 51

Realm System

Mingjin

Mingjin is the first stage of Internal Force cultivation.

• It reinforces the user’s muscles, bones, skin, and membranes, greatly surpassing normal physical ability. 46
• Mingjin cannot meaningfully leave the body; even when it enters an opponent, it lacks lethal power. 46
• A suitable Internal Force cultivation technique improves both conversion efficiency and the quality of the force produced. 46

Anjin

Anjin is the stage at which Internal Force gains lethal application.

• Zhang Su first unleashes Anjin by merging the Internal Forces of the Three Yang Divine Arts into the Small Three-Yang Force. 66
• Its power can imprint a palm mark and cracks into hard ground. 66
• The Small Three-Yang Force combines extreme rigidity, yang nature, and explosive violence. 66

Huajin

Huajin represents mastery over the transformations of force.

• A Huajin martial artist can wield Mingjin and Anjin fluidly, without obvious weaknesses. 109
• Internal Force can be unleashed naturally with every movement. 109
• Zhang Su comprehends force transformations through the collision and fusion of extremely yang and extremely yin Internal Forces. 109

Danjin / Baodan

Danjin, also called Baodan, focuses on maximizing the explosive output of Internal Force.

• Before Danjin, a unit of Internal Force can generally exert only 70–80% of its potential. 84
• Danjin can multiply that output several times or more than tenfold. 84 121
• Zhang Su’s six-in-one Pure Yang Force forms through the complete fusion of three Yin and three Yang divine arts. 121

Gangjin

Gangjin is the pinnacle of Internal Force application before the Postnatal Realm.

• Outer Gang coats the body in protective Gangjin, making a martial artist broadly impervious to blades and swords while sufficient force remains. 123
• Inner Gang extends that protection to the internal organs and improves endurance. 123
• Inner and outer as one allows Gangjin to reach every part of the body, eliminating bodily weak points. 123 145
• Gangjin is described as an application of Internal Force refined to its highest level. 123

Attributes and Fusion

Ordinary Internal Force techniques generally lack special attributes, while superior techniques and above may carry properties such as scorching heat, poison, or freezing cold. These attributes become especially consequential at the Anjin stage. 51

Zhang Su’s cultivation demonstrates several forms of Internal Force fusion:

• Small Three-Yang Force — Fusion of the three Yang Internal Forces; permits Anjin-level power. 57 66
• Great Three-Yang Force — A more complete union of the Three Yang Divine Arts, used against Huajin opponents. 100
• Yin-Yang Combined Force — Fusion of Great Three-Yang Force with Taiyin Internal Force; balances hardness and softness. 109 113
• Pure Yang Force — Six-in-one fusion of the Three Yang and Three Yin Divine Arts, forming the basis of Zhang Su’s Danjin. 121 127
• Taiji Primordial Unity Internal Force — Postnatal power born when nine divine arts become one after Zhang Su attains Perfect Gangjin. 154

Postnatal Transition

At the peak of Gangjin, cultivators ordinarily require years or decades of tempering to give birth to Postnatal Internal Force. 123 154

Zhang Su bypasses this prolonged process through the Pure Yang Nine-Union Divine Art:

• The art’s nine divine forces merge into one. 154
• His Taiji Primordial Unity Gangjin is converted into a condensed power born from the dantian. 154
• The resulting Taiji Primordial Unity Internal Force can protect the body, adhere to weapons, and produce solid sword radiance. 154
• It circulates autonomously through Zhang Su’s body and slowly grows even without deliberate cultivation. 154

Notable Quotes

“Internal Force... it is finally formed!” 45

“Whether it was Mingjin, Anjin, Danjin, or Gangjin, they were all simply different applications of Internal Force.” 123