The style

The Style - Mizunokokoro Ryu Jujitsu

The technical side of the system is a mix of different martial arts, the core of the system is inspired by the Tsutsumi Hozan ryu Jujitsu, Aiki-Jutsu, Kenpo, Aikido and have also some influence from filipino styles. The system is continusly polished and refined to meet the demands that are expected from a moderne Jujitsu system.

Gradings in this system do not come easy, it is hard work physically and mentally.

The system was founded in the year 2000, by Christian Hvidberg, and is inspired by the different styles he have meet in his extensive trained during his many years in martial art training.

Officially he started his martial art training in 1976, with Judo and Ju-jitsu´in Hjørring Jiu-Jitsu Klub. Later he supplyed his Ju-jitsu training with other styles, read more under founder.

Here is some of the background and thoughts that has been the foundation of the system.


Mizu-no-kokoro is a concept from zen buddhisme that have been used in the martial art for many years, it can roughly be translated to "Mind like water." A psychological principle of the martial arts emphasizing the need to have a calm mind while facing an opponent, having a mind much like the surface of undisturbed water.

The thought is, if you take a stone and throw it into the water, then the surface will not react before or after the stone hits the surface of the water, but will react exactly at the same time as the stone transfer the energi to the surface.

The water absorb the stone and resettles it's calm undesturbed surface again.

MIZU = Water                               KOKORO= Heart

The idea of using this concept in a ju-jitsu style, is my wish and a goal of bringing the student to a level of calmenes when faced by a threat, to given an edge to handle the situation without letting the fear in before the whole thing is over.

This takes a lot of time and a lot of training, and can only be achieved by repeating the techniques for several hundred times and through repeatedly reflex trainings, so the student feels ready when faced with danger.

It was also the idea to think of the Ju-jitsu style to have the same qualitys as water, being soft, floating and absorbing the force, but at the same time to being hard and destrutable like the element of water also can be - being able to strike back on the attacker with appropriate force.

Ryu= School or style

JU = Soft or gentle                        Jutsu= Art

Ju-Jitsu, Ju-Jutsu, Jiu Jitsu

Confusing isn't, a lot of different words for the same thing.

It is all about a "bad" translation years and years ago.

Please read the whole story on Wikipedia

The logo:

The logo of the system is a combination of two parts - the black triangel and the red and white circular symbol - the Mitsu-tomoe.

The kanji for MIZU-NO-KOKORO in the left corner, the kanji for JU-ITSU in the right corner and the kanji for KAN in the top corner

KAN means the place, representing the palce where we train Mizu-no-kokoro ju-jitsu.

The emblem is worn on the left arm, in the middel of shoulder and elbow, faceing to the left side.

The triangel:

The blacktriangel. In the asian interpretation of the five elements the color of water is black, the element of water is used in the name of the system - Mizu. - This element is also an inspiration for the techniques in the system.

The triangel also symbolise the taisabaki of the system, we always move out of the line of attack and then attack on a new line, illustrated by the red arrow int the center as the attack line, and the two red arrow angled on the attack line, creating a new line attack line for the defence

This basic shape is very simular to the shape of the logo from Chi-ryu, from Jhonny Bernachewice. from whom there also is some inspiration and influence in this system.

The Mitsu-tomoe

The name Mitsu-tomoe meaning turning or circular, refering to the motion of the earth.

The Mitsu-tomoe is also related to the yin yang symbol, and have similar meaning representing the play of the forces in the cosmos.

To incorporate this sybol in the system, was also the idea of motion -or movement, never standing still.

The Dogi

In the Mizu-no-kokoro Ryu Ju-jitsu system the budoka must always wear a clean gi without any tears or holes in it.

The budoka must inspect the dogi before each training.

The Mizu-no-kokoro Ryu Ju-jitsu badge must be worn on the left upper arm, between the elbow and the shoulder

The organisazion badge must be worn on the right shoulder between the shoulder and the elbow.

If there is a badge from the club, it is worne acordently to ruels of the club.

The students, (kyu grades) wear a white gi, while the blackbelts (dangrades) can wear a gi in the traditional colors

white, black, grey or navy blue.

We always wear the same color jacket and trousers, weather it is white, black, grey og navy blue.

The grading system:

The time between the gradings are minimum times.

In the different clubs there can be extra gradings between each grade for the children, as they need more time to absorb the program.

All the tap gradings between the belt grades are kihon grades, this mean that you have to show all the kihon up til this grade. The belt gradings are technique grading where you combine all the kihon into techniques.

Not all students have the skills, the will or is ready to make the scarifice it takes to pass the higher grades.

Kyu grades



Dan grades 



7. kyu 

White belt

6 months

1. dan 

Black belt

 1 year

6. kyu 

Yellow belt

6 months

2. dan 

Black belt

 2 years

5. kyu

Orange belt

1 year

3. dan 

Black belt

 3 years

4. kyu 

Green belt

1 year

4. dan 

Black and red belt

 4 years

3. kyu 

Blue belt

1 year

5. dan 

Black and red belt

 5 years

2. kyu 

Purple belt

1 year

6. dan 

Red and white belt

 6 years

1. kyu 

Brown belt

1 year

7. dan 

Red and white belt

 7 years

8. dan 

Red and white belt

 8 years

9. dan 

Red belt

 9 years

10. dan 

Red belt

10 years