Exact puzzle answers

Servant of the Lake Day 1 codes: 243 and 374

The reception chest and guest suitcase answers, separated so the two Day 1 locks are not confused.

Last verified 18 Aug 2026Source-backed
Quick answer

Reception chest: 243. Guest suitcase: 374. These are two different Day 1 locks: 243 is the reception chest and 374 is the guest suitcase.

In-game screenshot showing the horse during the arrival scene
Steam screenshotThe arrival chapter contains the separate guest suitcase puzzle.Real game screenshot
Focused answer

What to do

  1. 01
    Use 243 during reception prep.

    Read the portrait gestures, translate them into 4, 2, and 3, and enter 243 in the chest.

  2. 02
    Use 374 during guest arrival.

    After the carriage arrives, inspect the baby and suitcase clues. Enter 374 at the guest suitcase.

  3. 03
    Do not swap the locks.

    281 belongs to the Day 2 bath briefcase, not either of these Day 1 objects.

Keep going

Use the related cards below for the next code, action, or chapter.

FAQ

Common questions

What are the Day 1 codes?

Use 243 for the reception chest and 374 for the guest suitcase. They are separate locks.

Evidence ledger

Where this answer comes from

Reviewed 18 Aug 2026
S5AppUnwrapper Day 1 walkthroughThird-party walkthroughS21Steam Community detailed route + hidden achievementsCommunity guide / Chinese source