ISTJ

Thorough and responsible administrators

You are a serious and responsible person. You are a person of strong convictions who never gives up once you have said you will do something.

You are self-driven and hardworking, and you always meet deadlines for your work.

You have an excellent memory. You can remember surprisingly small details.

You are good at controlling yourself. You always observe situations dispassionately and make realistic decisions.

Your words are free of lies and embellishments.
You are always honest.

However, because of your personality, you are sometimes irritated by people who do not keep their promises or are lazy.

Not only that, but sometimes their work comes back to you and causes you a great deal of stress.
And sometimes it goes beyond your limits and you explode. Be careful.

You are meticulous and prefer to be alone. You do not express your feelings very often.
However, behind your cool exterior, there are times when you are actually very upset.

You are very protective of your own ideas and rules. You are not very willing to take risks and try new things.

Therefore, you sometimes lose money by sticking to old ways of doing things, and you are sometimes labeled as inflexible.

One of the Characteristicss of this type is that they are overly patient with their own needs.
In fact, there may be a part of them that feels pleasure in holding back their own desires.

Because of this, you may be forever imposing rules on yourself that are no longer necessary, or taking on things that are a burden to you for no good reason.

Nevertheless, this type of person's honesty, earnestness, and dedication to hard work that cannot be lied to are traits to be loved.
This type is best suited for marriage partners, business associates, and other situations where trust is required.

Characteristicss

You are responsible, serious and sincere.
You work hard and accumulate hard work. Once they make up their minds, they stick to it until the end.
You are cautious and conservative.
Even when you are upset, people around you say, "You are always calm.
You have a unique sense of humor and are not decorative in your remarks.

Common mistakes

You are too focused on details and lose sight of the big picture.
You tend to resist new things and change.
When you lose your composure, you become stubborn and exclusive.

This type of famous people

Jeff Bezos
Warren Buffett
Ingvar Kamprad
Angela Merkel
Matt Damon
Robert De Niro

16 Types

Guardians
1.　ESTJ - Efficient and practical organizers
2.　ISTJ - Thorough and responsible administrators
3.　ESFJ - Concerned and supportive people
4.　ISFJ - Respectful and considerate guardian
Explorers
5.　ESTP - A behaviorist who enjoys now
6.　ISTP - Individualist who likes thrill
7.　ESFP - Free-spirited and fun-loving people
8.　ISFP - Pacifist who wishing harmony
Analysts
9.　ENTJ - Leader of the initiative
10. INTJ - Creative idea man
11. ENTP - Entrepreneur aiming for creation and innovation
12. INTP - Intelligence seekers
Idealists
13. ENFJ - Engaging and compelling communicators
14. INFJ - Quiet idealist
15. ENFP - Freedom and Curiosity and Optimism
16. INFP - Idiosyncratic dreamers with strong imaginations