Aries · April 7
Attack on Titan · Survey Corps
Jean Kirstein: zodiac sign and birth chart
Jean Kirstein is an Aries, born on April 7. The official guidebook gives no real-world year, so his Moon and the rest of his chart are NEBO's take. Aries fits the cadet who says out loud what everyone else is thinking, picks a fight on day one and ends up covering your back anyway.
- SunAries
- MoonGemini
- RisingLeo
- MarsLibra
SourceBirthday: the official Attack on Titan Guidebook from Kodansha. Canon gives no real-world birth year, so only the Sun is canon. The other placements are NEBO's take.
Birth chart
Jean's chart at a glance
Sun from the canon birthday. Canon gives no year, so the rest is NEBO's take from his character.
- Fire2
- Earth0
- Air2
- Water0
- No single element runs his chart. 2 fire, 2 air.
- About 1 in 61 birthdays get Jean in the app's Attack on Titan world.
- Other Ariess here: Eren Yeager, Annie Leonhart and Gabi Braun.
NEBO's take
Canon says Aries. Our model says Leo.
We ran Jean through the same model that matches people to characters in the app, and looked at which chart gets him most often. It reads him as Leo first: Sun and Rising, with Gemini Moon and Libra Mars.
Canon
Aries SunApril 7, from the official guidebook. No year givenNEBO's take
Leo SunRead from his personality- Sun
CanonAriesNEBO's takeLeo
Canon's Aries says the unpopular thing straight to the room. Leo makes it a performance, with a bit of pride behind the bluntness.
- Moon
CanonNo birth yearNEBO's takeGemini
Canon gives no year, so the Moon is our take. Gemini keeps the jokes and the arguing on top, and the real feeling comes out later and quietly.
- Rising
CanonNo birth timeNEBO's takeLeo
No birth time in canon. First impression, Leo style: confident, a bit cocky and quick to take charge. He is the one who looks like the leader in the room.
- Mercury
CanonNo birth yearNEBO's takeLeo
Leo Mercury talks like it matters. Jean's orders in a fight are short and loud, and people follow them.
- Venus
CanonNo birth yearNEBO's takeCancer
Cancer Venus is loyal to the people closest to him. He is gruff on the outside, and he feels every loss.
- Mars
CanonNo birth yearNEBO's takeLibra
Libra Mars fights with fairness in mind. He picks his side carefully and sticks with it once he decides.
Where we agree: both are fire signs with a loud voice. Aries speaks first, Leo wants to be heard doing it.
How he shows up
Why he's like this
Aries is the sign of the blunt first reaction and the courage to say it out loud. Jean hits it in scenes fans know, and NEBO's Leo, Gemini and Cancer fill in the rest of his chart.
CoreAries Sun
Says the honest thing out loud
At the end of training, Jean announces that he wants a safe post in the Military Police because he does not want to die for the Walls. He is the only one who says it, and Eren cannot stand him for it.
Attack on Titan, Season 1, training corps arc
First impressionLeo rising
The voice that cuts through chaos
In the middle of a battle, Jean sees who is panicking and hands out short, clear orders. People who have never liked him follow them, because they work.
Attack on Titan, Season 2 and Season 3 battles
In a fightMars in Libra
Picks the right side
In the last arc, when the world is falling apart and a quiet life is an option, Jean stays with the group trying to stop the Rumbling. He chooses it knowing what it costs.
Attack on Titan, Season 4 · spoiler
Your turn
Which Attack on Titan character are you?
Pick your birthday. Your Sun sign gives a first answer right here, then the app reads your whole chart.
Aries girls get Mikasa Ackerman most often. Aries guys get Eren Yeager.
You and Jean: Same sign. You'd get each other without trying.
Taurus girls get Rico Brzenska most often. Taurus guys get Keith Shadis.
You and Jean: Next-door signs. Different instincts, lots to learn.
Gemini girls get Hange Zoë most often. Gemini guys get Armin Arlert.
You and Jean: Signs that cheer each other on. Good team.
Cancer girls get Pieck Finger most often. Cancer guys get Armin Arlert.
You and Jean: Signs at a right angle. Friction, the useful kind.
Leo girls get Historia Reiss most often. Leo guys get Jean Kirstein.
You and Jean: Same element, fire. Easy chemistry, same pace.
Virgo girls get Hange Zoë most often. Virgo guys get Levi Ackerman.
You and Jean: Signs that speak different languages. Curious mix.
Libra girls get Hitch Dreyse most often. Libra guys get Armin Arlert.
You and Jean: Opposite signs. You see each other's blind spot.
Scorpio girls get Annie Leonhart most often. Scorpio guys get Floch Forster.
You and Jean: Signs that speak different languages. Curious mix.
Sagittarius girls get Mikasa Ackerman most often. Sagittarius guys get Connie Springer.
You and Jean: Same element, fire. Easy chemistry, same pace.
Capricorn girls get Rico Brzenska most often. Capricorn guys get Theo Magath.
You and Jean: Signs at a right angle. Friction, the useful kind.
Aquarius girls get Hange Zoë most often. Aquarius guys get Zeke Yeager.
You and Jean: Signs that cheer each other on. Good team.
Pisces girls get Pieck Finger most often. Pisces guys get Falco Grice.
You and Jean: Next-door signs. Different instincts, lots to learn.
That's your Sun sign talking. The app reads your Moon, Venus, Mars and the rest, and the answer can change.
Get my real Attack on Titan character→Chemistry
Who Jean clicks with, and who he clashes with
Read from the charts on their pages. The plot may disagree.
Clicks with
- Eren YeagerGemini Moon+Leo MoonMoons in friendly signs: they know how to settle each other down.
- Kenny AckermanAries Sun+Leo MoonSun and Moon in the same element: around each other, they feel seen.
- Gabi BraunAries Sun+Aries SunSuns in the same element: they want the same things and go after them the same way.
Pick a side
Are you more Jean or Mikasa?
Your birthday settles it. The app reads your whole chart and tells you who you really get.
Similar charts
Who else has Jean's chart
Famous Aries with his placements
Their charts line up with Jean's: his canon Aries Sun plus NEBO's take on the rest. A chart match only: none of them is connected to this page.
.jpg)
Jean in real life
The app's Jeans lean Leo like his model chart: Hasan Piker, Bo Burnham and Ben Affleck are all Leo Suns.
Characters like him in other worlds
Same chart pattern in our model, different universe.
Attack on Titan
Characters like Jean
Closest charts first: shared signs, same elements.
Which Attack on Titan character are you?
Add your birthday and the app finds your Attack on Titan character, which squad you would join and how close you are to Jean.
Are you Jean? Find your character→Questions
Jean's zodiac sign: what people ask
What zodiac sign is Jean Kirstein?
Aries. The official Attack on Titan Guidebook gives Jean's birthday as April 7, and Aries runs from March 21 to April 19.
When is Jean's birthday?
April 7. Canon gives no real-world birth year, so his full birth chart cannot be calculated.
Is Jean an Aries?
Yes, by his canon birthday. The blunt first reaction fits: he says what he thinks and picks fights early. Our personality model reads him as Leo on top, the proud voice that others follow.
What is Jean's Moon sign?
Unknown in canon, because his birth year is never given. NEBO's take, built from his personality, puts his Moon in Gemini.
What element is Jean?
Fire. Aries is a fire sign, and 2 of his 4 placements are fire too.
Who is Jean most compatible with?
By chart, Eren Yeager, Kenny Ackerman and Gabi Braun. Gemini Moon and Leo Moon: they know how to settle each other down.
Unofficial fan page. Attack on Titan and its characters belong to their respective owners. NEBO is for entertainment.
NEBO is for entertainment and self-reflection, not medical, psychological or financial advice.
TermsPrivacyImpressumCelebrity birth chartsZodiac signsFandom charactersZodiac compatibility2027 HoroscopeCelebrity birthdays© 2026 NEBO LABS LLC