【Jujutsu Kaisen Theory】Birthdays are related to “Season”, I’m reminded that Gege Akutami-Sensei is a genius.

Some anime/manga characters’ birthdays have meaning.
But is there any manga that is so meticulously created than Jujutsu Kaisen?

I’ve never seen a manga like Jujutsu Kaisen before…

The key word is “Season”.

I made the list of birthdays. Check it out.

As you can see from this chart, there is a lot of variation in the month of birthdays.
There is no one in May, on the other hand, March and December have many birthdays.


The reason is that the birthdays of the characters in Jujutsu Kaisen are based on the seasons in Japan.

Here’s one key word.


Keyword : 二十四節気(Nijuushisekki)

The year is divided into 24 equal parts as a guide to seasonal transitions, and each division is named after a season.

There are many days in Japan that represent the seasons.
And those are related to Jujutsu Kaisen characters’ birthdays.

Check the charts.


From January to April



It refers to the latter 15 days of the 30-day cold period from the 15th day after the winter solstice to Risshun, when the cold is at its most severe.


When the first signs of spring appear


As the snow turns to rain with the warmth and the snow melts, the first signs of spring arrive.


This is the time when insects that have been hibernating in the ground during the winter start to crawl out of the ground, sensing the signs of spring.


There are two days in a year, spring and autumn, when the length of day and night are equal, and this is the day in spring.


When plants and trees are budding, clean, bright and beautiful.


Blessed rain that nurtures the growth of grains.


From June to October


Time to sow seeds of grains (rice, wheat, etc.) that have a stalk.


The day with the longest day and shortest night of the year.


The rainy season is almost over, and we are heading into the real heat of the season.


The hottest time of the year.


When the signs of autumn appear.


There are two days in a year, spring and autumn, when the length of day and night are equal, and this is the day in autumn.


When autumn has passed and the first mist begins to fall.


From November to December


When the signs of winter appear.


When the snow begins to fall heavily and the real cold weather arrives.


The day with the shortest day and the longest night of the year.
And their birthdays have nothing to do with the seasons.

  • Nanami
  • Mechamaru
  • Toji

It’s too sad but this must have some relation with it.


Keyword: 春分・夏至・秋分・冬至

And I think there’s an interesting clue here.
Maybe there is a clue in the daylight hours.
I guess someone’s birthday would be 夏至 (Geshi), the opposite of Megumi.

Because look at Yuji and Todo.
They have different birthdays, but similar seasons, 春分 (Shunbun) and 秋分 (Shuubun). Both of them are the day when daytime and nighttime are exactly the same!!
That’s why they are best friends.

So I think a character whose birthday is on 夏至 (Geshi) will show up in the future.
And I think that person will be an important character.
What do you guys think?

Anyway, there are so many clues just from birthdays.
I want to check the character setting sheets somehow.

I think Gege’s name, Ge, is a shortened form of genius.
Gege-Sensei is “Ge”nius “Ge”nius!

If you have any ideas, please comment and let me know.
And please check out my Twitter!!