Kernel Hearts M.A.H.O.U. Units Hub
Four android magical girls, four weapons, one Tower.
The M.A.H.O.U. Unit is the entire playable cast advertised for launch: Fernet, Spika, Laika, and Dolce. They are android magical girls built to climb the Tower of Babel, die, restore from backup, and climb again. This hub is the roster index. Rankings live on the tier list. How they press buttons lives in combat.
The squad at a glance
- Fernet — Captain. Argentinian. Saber. Telekinesis / spiritmancer. Default starter. Spells: Koka, Raiquen. Pet named Koka.
- Spika — Japanese. Katana. Physical melee and aerials. Spells: Sangetsu, Higanbana. Common demo unlock.
- Laika — Russian-coded backstory, greatsword Damocles, hemokinesis. Spells: Blades, Blood Pillar. Soft spot for Dolce.
- Dolce — Fourth unit. Name is Italian for “sweet.” Public kit writeups are thinner than the other three; confirm her weapon on the select screen of your build.
Official site and wiki community pages present these four as the squad. There is no secret fifth starter in the marketing.
Who to play first
Fernet if you want the story camera and a kit that forgives bad spacing. Spika if Fernet’s saber feels like it lacks bite — many demo comments say the game “starts” when she unlocks. Laika if you like heavy weapons and blood magic projectiles. Dolce if you have seen her in the current client and her tools click; do not invent a main off key art alone.
Co-op stacks should mix roles. Four captains is a joke run. See co-op.
How units are built, in lore and in systems
The Creator in Babel maintains the androids. Death is a new model waking from backup, not a permadeath. Chips on MAHOU.OS are the mechanical version of “the Creator knows his tools.” That is why character pages talk about kits (weapon + spells) and then send you to chips and builds for the 256KB layer. A Fernet with no mana chips is not the Fernet in the trailer.
Transformation true forms are a shared fantasy with per-character animation. Timing is a floor rule, not a unique ult gauge with published numbers. Use the transformation guide.
NPCs are not playable, but they matter
Babel’s residents — Creator, scavengers Rhea and Haru, artificers Tofu and Toke, bar owner Momo, plus Tower allies like Nura, Daiki, Mikolaj, and Fang — are the bonding layer. They do not belong on this roster, but skipping them is how you treat Kernel Hearts like a score-attack and then wonder why the town exists. Full page: Babel and bonds. Getting Started covers the first walk. Gift routes will expand after September 17; we will not fake affinity tables.
Locked faces on select are a gate, not a missing download. How to unlock units.
Demo vs launch roster
Your select screen is truth. Videos from March 2026 may hide units that an August build shows. If Dolce or Laika is greyed out, play the two you have. The demo walkthrough includes an unlock note for Spika.
Read next
- Fernet — default main.
- Spika — melee main.
- Laika — heavy main.
- Dolce — fourth.
- Babel and bonds — Creator, gifts, Mikolaj, Fang.
- Unlock units — who the demo still greys out.
- Tier List Hub — demo-informed order, not a law.
- Guides Hub — how to actually climb.
Frequently Asked Questions
Quick answers before you climb the Tower of Babel.
How many playable characters are in Kernel Hearts?
Four MAHOU units are advertised: Fernet, Spika, Laika, and Dolce. Demo builds may gate some of them behind playtime.
Who is the main character?
Fernet is captain and story protagonist. You can still main anyone else once they are unlocked.
Do characters share chips?
Treat MAHOU.OS as unit-specific until the lab UI shows a shared pool. Build for the kit you are taking into the Heaven. See chips and builds.
Is there PvP?
No. Kernel Hearts is co-op and solo versus the Tower. The rivalry is the curse clock, not other players.