Aries · April 1
Tokyo Revengers · Black Dragon
Koko: zodiac sign and birth chart
Hajime Koko Kokonoi is an Aries, born April 1, 1990. Sun and Mercury in Aries: quick, driven and always first to spot a deal. Venus and Mars in Aquarius give the cool head and the odd, inventive streak.
- SunAries
- MoonGemini
- MercuryAries
- VenusAquarius
- MarsAquarius
SourceBirthday: Tokyo Revengers Character Book 2 (Kodansha, official). The official account later corrected the birth year from 1989 to 1990. The chart is calculated from that date, so every placement shown is real, except the rising sign.
Birth chart
Koko's chart at a glance
Drawn from his canon birthday. No birth time in canon, so no rising sign.
- Fire2
- Earth0
- Air3
- Water0
- Mostly air. 3 of his 5 placements are air signs.
- Born on a Sunday. “Sunday's child is bonny and blithe,” says the old rhyme.
- About 1 in 49 birthdays get Koko in the app's Tokyo Revengers world.
- Other Ariess here: Naoto Tachibana and Senju Kawaragi.
NEBO's take
Canon says Aries. Our model says Gemini.
We ran Koko 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 Gemini: quick, many-sided and clever with numbers.
Canon
Aries SunApril 1, 1990, from Character Book 2NEBO's take
Gemini SunRead from his personality- Sun
CanonAriesNEBO's takeGemini
Aries is the drive to make it big and fast. Gemini is the clever angle on how.
- Moon
CanonGeminiNEBO's takeLibra
Gemini Moon is a mind that never rests. Our Libra Moon wants things to look right.
- Rising
CanonNo birth timeNEBO's takeLibra
No birth time in canon. First impression: a sharp-eyed guy with a deal on his mind, and a feeling he doesn't talk about.
- Mercury
CanonAriesNEBO's takeGemini
Aries Mercury thinks fast and goes straight to profit. Our Gemini Mercury is the one who talks you into it.
- Venus
CanonAquariusNEBO's takeLibra
Aquarius Venus keeps feelings at a distance and shows them through odd, indirect acts. Our Libra Venus is the polished version.
- Mars
CanonAquariusNEBO's takeLibra
Aquarius Mars works on ideas, not fists. He wins with money.
Where we agree: both see a fast mind that finds money in places others don't look. Canon's Aries moves first, our Gemini finds the angle.
How he shows up
Why he's like this
Aries is the sign of drive, speed and a need to prove something. Koko hits every one of them, in scenes fans know by heart.
CoreAries Sun
Money from thin air
He's Black Dragon's money genius, who can make serious cash out of almost nothing, seeing profit where others see nothing.
Christmas Showdown arc and later
In a fightMars in Aquarius
Business plan in one evening
He can turn an idea into a serious sum within days, which says everything about how his mind works.
Throughout the series
LoveVenus in Aquarius
Loved a girl who was hurt
As a kid he was in love with Akane, the older sister of his friend Inui, who was badly hurt in a fire.
Christmas Showdown arc
FeelingsGemini Moon
Earns as if cash could undo it
Ever since, Koko earns money obsessively, as if cash could undo what already happened.
Later arcs
Your turn
Which Tokyo Revengers 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 Senju Kawaragi most often. Aries guys get Mikey.
You and Koko: Same sign. You'd get each other without trying.
Taurus girls get Akane Inui most often. Taurus guys get Draken.
You and Koko: Next-door signs. Different instincts, lots to learn.
Gemini girls get Emma Sano most often. Gemini guys get Naoto Tachibana.
You and Koko: Signs that cheer each other on. Good team.
Cancer girls get Emma Sano most often. Cancer guys get Kazutora Hanemiya.
You and Koko: Signs at a right angle. Friction, the useful kind.
Leo girls get Senju Kawaragi most often. Leo guys get Mikey.
You and Koko: Same element, fire. Easy chemistry, same pace.
Virgo girls get Akane Inui most often. Virgo guys get Naoto Tachibana.
You and Koko: Signs that speak different languages. Curious mix.
Libra girls get Emma Sano most often. Libra guys get Keisuke Baji.
You and Koko: Opposite signs. You see each other's blind spot.
Scorpio girls get Hinata Tachibana most often. Scorpio guys get Takemichi Hanagaki.
You and Koko: Signs that speak different languages. Curious mix.
Sagittarius girls get Yuzuha Shiba most often. Sagittarius guys get Keisuke Baji.
You and Koko: Same element, fire. Easy chemistry, same pace.
Capricorn girls get Yuzuha Shiba most often. Capricorn guys get Draken.
You and Koko: Signs at a right angle. Friction, the useful kind.
Aquarius girls get Yuzuha Shiba most often. Aquarius guys get Smiley.
You and Koko: Signs that cheer each other on. Good team.
Pisces girls get Hinata Tachibana most often. Pisces guys get Takemichi Hanagaki.
You and Koko: 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 Tokyo Revengers character→Chemistry
Who Koko clicks with, and who he clashes with
Read from the charts on their pages. The plot may disagree.
Clicks with
- Senju KawaragiGemini Moon+Aries MoonMoons in friendly signs: they know how to settle each other down.
- Naoto TachibanaAries Sun+Aries SunSuns in the same element: they want the same things and go after them the same way.
- Takashi MitsuyaGemini Moon+Gemini SunSun and Moon in the same element: around each other, they feel seen.
Clashes with
Pick a side
Are you more Koko or Takemichi?
Your birthday settles it. The app reads your whole chart and tells you who you really get.
Similar charts
Who else has Koko's chart
Famous Aries with his placements
Their charts line up with Koko's canon chart. A chart match only: none of them is connected to this page.
Koko in real life
The app casts Jxdn, an Aquarius, Jeonghan, a Libra, and Haechan, a Gemini, as Koko.
Characters like him in other worlds
Same chart pattern in our model, different universe.
Tokyo Revengers
Characters like Koko
Closest charts first: shared signs, same elements.
Which Tokyo Revengers character are you?
Add your birthday and the app finds your Tokyo Revengers character, your gang and how close you are to Koko.
Are you Koko? Find your character→Questions
Koko's zodiac sign: what people ask
What zodiac sign is Koko?
Aries. The Character Book gives Koko's birthday as April 1, and Aries runs from about March 21 to April 19.
When is Koko's birthday?
April 1, 1990, from Tokyo Revengers Character Book 2. The official account later corrected his birth year from 1989 to 1990.
Is Koko an Aries?
Yes. Sun and Mercury are in Aries, which fits the speed and the drive. Our personality model reads more Gemini on top.
What is Koko's birth chart?
Sun and Mercury in Aries, Moon in Gemini, Venus and Mars in Aquarius. There is no rising sign, because canon never gives his birth time.
What element is Koko?
Fire. Aries is a fire sign, and 2 of his 5 placements are fire too.
Who is Koko most compatible with?
By chart, Senju Kawaragi, Naoto Tachibana and Takashi Mitsuya. Gemini Moon and Aries Moon: they know how to settle each other down.
Unofficial fan page. Tokyo Revengers 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

.jpg)






