
Pen Spin
Spin a pen across the desk chart and let the landing settle the pick.
Four playful ways to pick, inspired by the small rituals and after-school energy of Korean school life. Lists, results, and reward progress stay on your device.



FOUR PLAYFUL WAYS TO CHOOSE
Start with names, choose a picker, and let everyone see how the result arrives. Each mode makes the same fair decision feel completely different.

Spin a pen across the desk chart and let the landing settle the pick.

Follow every branching chalk path before the final name is revealed.

Fold every name into balanced groups with Jebi as the cheerful guide.

Give each student a marble, then watch the whole choice race to the finish.

MARBLE RUN
Every name gets a marble. Live standings shift while the course unfolds, so the group can cheer the process—not just wait for a result.
SCHOOL ALBUM
Browse 300 fixed fictional students across three grades and twelve homerooms. The Album, Billboard, and Reward Stamp Book make each finished decision part of a larger school-day world.

10 / FIXED COLLECTION
One fixed Special Classmate unlocks every 1,000 completed decisions through 10,000. They unlock in a fixed order—never random, tied to odds, purchasable, or created from photos, uploads, or in-app generation.










LOCAL-FIRST BY DESIGN
K-Picker has no account. Picker entries, saved lists, game history, preferences, and reward progress stay on the device. Sponsor messages and optional ad reports are explained plainly in the privacy notice.