After midnight in the deserted intake hall, Wenruo studies the hidden warning from the previous ledger under a dying black-glass lamp.

Wenruo extracts the archive reference from the twelfth ledger and realizes it points somewhere outside normal records.

Wenruo leaves the intake hall and passes the sleeping rhythm of the Bureau's night clerks.

The Bureau's interior begins to alter as Wenruo follows the ledger reference.

Wenruo enters the Receipt Vault and traces Ma Qi's poisoned-ink sale through Bureau inventory chains.

The hidden route opens between official levels, revealing the impossible gap in the Bureau.

Wenruo reaches the Forgotten Stack for the first time.

Wenruo uses her gift to read sealed ledger spines that would blind ordinary clerks.

The Stack reacts to Wenruo's presence and guides her deeper.

The locked ledger recognizes Wenruo's oath mark and opens despite being restricted.

Wenruo opens the ledger and finds a confession page prepared in formal language.

The murder confession is revealed in full.

The receiving auditor's seal reveals that Senior Auditor Cao accepted the murder confession.

The ledger shows Li Yan only as a damaged record, not a full memory.

The ledger activates and shows the sunrise consequence of a confessed sin bound to Wenruo.

The pre-dawn bell gives Wenruo a deadline and forces her to act.

Wenruo steals her locked personal ledger from the Forgotten Stack.

Wenruo returns toward the hidden stair and studies what the Bureau's routine seals will and will not read.

In a supply alcove near the stair, Wenruo prepares to mark a warning onto her own skin.

Wenruo tattoos the warning where the routine seals will not scan.

Wenruo bandages the tattoo and prepares to leave, but the stolen ledger drops another message.

The loose page reveals Wenruo has found the ledger before, ending the chapter on her recognition of her own handwriting.