Who gets the Sincerity effect from The Duplicity Mystery?

Only Witness characters: Argos, Cynthia II and Grimm in the current roster. None of our build pages pick it yet, so on anyone else it only adds its 4,233 HP and 423 ATK at Lv. 80.

Is it worth getting duplicates of The Duplicity Mystery?

Each duplicate raises its Resonation Tier by one, up to Tier 5. From Tier 1 to Tier 5 its scaling values go from 10 to 20 and 4 to 8. At Tier 5 it reads: "The character using this Motive gains 20% Max HP. When they deal Ultimate DMG, the ATK of all characters on the team is increased by 8% for 40s, stacking up to 2 times."

How strong is The Duplicity Mystery at Lv. 80, and what does it cost?

4,233 HP and 423 ATK, 11th highest ATK among the 17 four-star Motives (shared with 4 others). Reaching Lv. 80 takes 21,500 Ounce, 10 Witness's Instinct, 7 Witness's Insight, 7 Witness's Challenge and 14 Witness's Legacy.

How do you get The Duplicity Mystery?

It was one of the featured 4-stars on Her Heart, the Flames Within, the limited Monologue banner of the Dichotomy beta.

The Duplicity Mystery

Updated 1 November 2026 · 4-star · Witness · 423 ATK at Lv. 80

The Duplicity Mystery is a 4-star Witness Motive (weapon) in Silver Palace, with 423 ATK and 4,233 HP at Lv. 80. Its Sincerity effect at Tier 1: The character using this Motive gains 10% Max HP. When they deal Ultimate DMG, the ATK of all characters on the team is increased by 4% for 40s, stacking up to 2 times. Only Witness characters get it: Argos, Cynthia II, Grimm.

Stats by level

Lv. 1 to 80

LevelLv. 80

Base HP

4,233Lv. 80

Lv. 1 · 192×22.0 from Lv. 1

Base ATK

423Lv. 80

Lv. 1 · 19×22.3 from Lv. 1

Max level in the beta files.

Sincerity effect

Resonation Tier 1 to 5

One copy

The character using this Motive gains 10% Max HP. When they deal Ultimate DMG, the ATK of all characters on the team is increased by 4% for 40s, stacking up to 2 times.

Each duplicate raises the Resonation Tier by one. Only Witness characters get this effect: Argos, Cynthia II and Grimm.

Breakthrough materials

Six breakthroughs, Lv. 20 to 70

Lv. 20
- ×3
1,000Ounce
Lv. 30
- ×7
1,500Ounce
Lv. 40
- ×7
2,000Ounce
Lv. 50
- ×7
3,000Ounce
Lv. 60
- ×5
4,000Ounce
Lv. 70
- ×9
10,000Ounce
Total
- ×10
- ×7
- ×7
- ×14
21,500Ounce

Books in the total, left to right: Witness's Instinct, Witness's Insight, Witness's Challenge, Witness's Legacy. Where they drop is on the Motives page.

In the database

One of 7 Witness Motives, 3 of them 4-star.
Its 423 ATK at Lv. 80 sits inside the four-star range of 370 to 476.

Lore

A good bartender is either making friends, or on his way to making them. Just like Argos, who is either working a side job, or on his way to one.
A special with 30 millilitres of alcohol can quickly loosen any tongue, then it's just a matter of listening afterwards, may it be a potpourri of truths and nonsense, or a jumble of deceit and honesty.
The bartender is no expert at telling them apart, but he knows someone who is. The puzzle is already in sight, and Argos is waiting for the one who can solve it.

Data compiled from the Dichotomy beta game files, checked 1 November 2026. Launch is 14 December 2026 (UTC+8), and names and numbers can change before then.

Frequently asked questions

4 answers, always open

Ask on Discord

Who gets the Sincerity effect from The Duplicity Mystery?: Only Witness characters: Argos, Cynthia II and Grimm in the current roster. None of our build pages pick it yet, so on anyone else it only adds its 4,233 HP and 423 ATK at Lv. 80.
Is it worth getting duplicates of The Duplicity Mystery?: Each duplicate raises its Resonation Tier by one, up to Tier 5. From Tier 1 to Tier 5 its scaling values go from 10 to 20 and 4 to 8. At Tier 5 it reads: "The character using this Motive gains 20% Max HP. When they deal Ultimate DMG, the ATK of all characters on the team is increased by 8% for 40s, stacking up to 2 times."
How strong is The Duplicity Mystery at Lv. 80, and what does it cost?: 4,233 HP and 423 ATK, 11th highest ATK among the 17 four-star Motives (shared with 4 others). Reaching Lv. 80 takes 21,500 Ounce, 10 Witness's Instinct, 7 Witness's Insight, 7 Witness's Challenge and 14 Witness's Legacy.
How do you get The Duplicity Mystery?: It was one of the featured 4-stars on Her Heart, the Flames Within, the limited Monologue banner of the Dichotomy beta.