In Silent Hill f, even the smallest puzzle hides something sinister beneath its surface. One of the most intricate early-game challenges unfolds within the eerie halls of Ebisugaoka Middle School, where a series of locked student lockers conceals both story progression items and powerful rewards. To open them, you’ll need to break the so-called “girl code” — a numerical cipher used by the students to encode their locker combinations.

This guide unravels every locker code in Silent Hill f, explaining how to decipher the “girl code,” where to find each clue, and what you’ll earn from every locker.

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Silent Hill f School Locker Puzzle Overview

Your journey through Ebisugaoka Middle School begins after completing the Secret Box puzzle. Upon solving it, you’ll receive the Second Floor Generic Classroom Key, which opens two locked classrooms on the eastern side of 2F.

Inside one of these classrooms sits a pivotal clue — the Note to Teacher, revealing that a student named Ayumi Asakura found a lost key but stashed it inside her locker. To get that locker open, you’ll first need to understand her coded message and collect a few more keys hidden throughout the school.

Your main objective:

🗝️ Find Ayumi’s locker combination to obtain the Key Cabinet Key, which unlocks the Key to the Back Mountains, advancing the main story.

Decoding the “Girl Code” in Silent Hill f

The “girl code” is a playful cipher that replaces letters with similar-looking numbers — essentially an early form of leetspeak. You’ll find examples of it scrawled on notes and origami inside the school’s annex classrooms.

Here’s the basic pattern:

Letter	Code Equivalent
A	4
E	3
I	1
O	0
S	5
G	9

To decode messages or determine locker combinations, simply swap these values accordingly. The locker codes are always three digits long, each derived from these substitutions.

Ayumi Asakura’s Locker Puzzle (Main Story Solution)

Once you collect Asakura’s Textbook and the Locker Room Key from her classroom, head downstairs to the girls’ locker room. This is where the real decoding begins — and your solution depends on the puzzle difficulty setting.

Story Mode Solution

“I’m a mermaid. The sea is calling out to me… The best thing in the world! It’s so lovely, it’s now my locker combination!”

The keyword here is SEA, which in girl code translates to:
S = 5, E = 3, A = 4 → 534

Ayumi’s Locker Code (Story Mode): 534

You’ll receive: Key Cabinet Key

Hard Mode Solution

“I’m a tortoise. The bus is calling out to me… Bus! BUS! The best thing in the world! I love it so much that I made it my locker combination!”

The keyword this time is BUS. Using the same cipher pattern:
B = 8, U = 6, S = 5 → 865

Ayumi’s Locker Code (Hard Mode): 865

You’ll receive: Key Cabinet Key

Lost in the Fog Mode Solution

“You can poach it, fry it, or boil it… and if you add flour and sugar, you can make a cake!”

The answer is EGG.
E = 3, G = 9, G = 9 → 399

Ayumi’s Locker Code (Lost in the Fog Mode): 399

You’ll receive: Key Cabinet Key

Optional Lockers and Their Rewards

Although only Ayumi’s locker is mandatory to advance the story, there are three more lockers in the school that can be opened for useful rewards — from inventory upgrades to charms.

Student	Locker Code	Item Inside	Clue Source
Takeshi Aoi	401 (AOI in girl code)	Origami of Grievances (Hint for Suga’s locker)	Found in cubbyholes in Ayumi’s classroom
Suga Yosie	505 (SOS – “cry for help”)	School Bag (Increases inventory by +1)	Mentioned in Aoi’s Origami
Tsuchiya Taiko	377	Omamori [Wolf] (Increases melee damage)	Found in a 2F classroom via Origami note

These codes remain constant across all difficulty levels, so you can revisit them on New Game+ for extra loot.

What to Do After Solving the Locker Puzzle

After retrieving the Key Cabinet Key from Ayumi’s locker, return to the office near the school’s shoe racks. Unlock the cabinet to obtain the Key to the Back Mountains, concluding the middle school section of Silent Hill f and unlocking a new exploration zone.

On subsequent NG+ runs, the girls’ locker room is already unlocked. You can head straight to Ayumi’s locker and bypass most of the school’s side puzzles — but beware. Acquiring the Key Cabinet Key early triggers a scarecrow ambush, a scripted event meant to balance this shortcut.

Summary – All Silent Hill f Locker Codes

Locker Owner	Story Code	Hard Code	Lost in the Fog Code	Reward
Ayumi Asakura	534 (SEA)	865 (BUS)	399 (EGG)	Key Cabinet Key
Takeshi Aoi	401 (AOI)	401	401	Origami of Grievances
Suga Yosie	505 (SOS)	505	505	School Bag (+1 Inventory)
Tsuchiya Taiko	377	377	377	Omamori [Wolf]

Final Thoughts

The locker code puzzle in Silent Hill f is a subtle blend of atmosphere and logic — a small test of observation wrapped in the haunting stillness of Ebisugaoka Middle School. Whether you’re decoding Ayumi’s secret language or unlocking every optional locker for hidden treasures, these moments perfectly capture the series’ essence: a delicate balance between mystery, dread, and discovery.

Solve the puzzle, unlock the secrets, and listen — the fog of Silent Hill always whispers when you’re getting close.

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