Opuses Table

Tome List

Treatise, Codex, Opus List

Upgrading & Sidegrading

All Treatises and Codices can be obtained from any of the reward slots at the end of Another Dungeons that are listed below, at a rate of 0.1% per each one that exists. However, Opuses can only be obtained, at the same rate, from Another Dungeons of the same list.
The Nopaew Emporium shop also sells two of each Treatise or Codex, but does not sell any Opus. This shop limit does not ever reset.
Click Expand below to see the list of Another Dungeons where these can drop. Another Dungeons that are not in this list do not award them.

Obtained from Another Dungeon:
- (~0.1% per reward slot)
Nopaew Emporium shop (x2)
Phantom Crystal Dimension Sensationalist

Note: side-grading to or from alter/parallel styles (AC) can only be done via the normal style (NS) of the base character, not the another or extra styles (AS or ES). Also, for some "mysterious" ACs you need to have revealed the character's true identity first by playing through particular chapters of the The Apex of Logic and Cardinal Scales Mythos.