Chisa Ascension Materials & Farming Guide

To fully ascend Chisa to Lv. 90 and max out the forte board you need 60 Summer Flower, 46 Abyssal Husk, 26 When Irises Bloom (weekly boss), plus the enemy and forgery series below: 2,200,000 Shell Credits in total (170,000 + 2,030,000).

At a glance

Material	Total
LF Polygon Core	29
MF Polygon Core	40
HF Polygon Core	52
FF Polygon Core	61
When Irises Bloom	26
Abyssal Husk	46
Summer Flower	60
Waveworn Residue 210	25
Waveworn Residue 226	28
Waveworn Residue 235	55
Waveworn Residue 239	67
Shell Credit	2,200,000

Chisa ascension materials

Ascension moves Chisa from level 20 to 90 in six breaches. Every row is the cost of one breach:

Level	Shell Credits	Materials
20 → 40	5,000	LF Polygon Core ×4
40 → 50	10,000	Abyssal Husk ×3 Summer Flower ×4 MF Polygon Core ×4
50 → 60	15,000	Abyssal Husk ×6 Summer Flower ×8 MF Polygon Core ×8
60 → 70	20,000	Abyssal Husk ×9 Summer Flower ×12 HF Polygon Core ×4
70 → 80	40,000	Abyssal Husk ×12 Summer Flower ×16 HF Polygon Core ×8
80 → 90	80,000	Abyssal Husk ×16 Summer Flower ×20 FF Polygon Core ×4
Total	170,000	every material, once each (table below)

Total chisa ascension materials

Material	Total
LF Polygon Core	4
MF Polygon Core	12
HF Polygon Core	12
FF Polygon Core	4
Abyssal Husk	46
Summer Flower	60
Shell Credit	170,000

Chisa forte materials

The forte board is five main nodes (each leveling 1 → 10), four tier-1 and four tier-2 stat nodes, and five single-rank nodes. The per-level rows sum the five main nodes:

Level	Shell Credits	Materials
Lv. 2	7,500	LF Polygon Core ×10 Waveworn Residue 210 ×10
Lv. 3	10,000	LF Polygon Core ×15 Waveworn Residue 210 ×15
Lv. 4	22,500	MF Polygon Core ×10 Waveworn Residue 226 ×10
Lv. 5	30,000	MF Polygon Core ×15 Waveworn Residue 226 ×15
Lv. 6	80,000	HF Polygon Core ×10 Waveworn Residue 235 ×15
Lv. 7	150,000	HF Polygon Core ×15 When Irises Bloom ×5 Waveworn Residue 235 ×25
Lv. 8	250,000	FF Polygon Core ×10 When Irises Bloom ×5 Waveworn Residue 239 ×10
Lv. 9	350,000	FF Polygon Core ×15 When Irises Bloom ×5 Waveworn Residue 239 ×15
Lv. 10	500,000	FF Polygon Core ×20 When Irises Bloom ×5 Waveworn Residue 239 ×30
Total	2,030,000	every material, once each (table below)

Total chisa forte materials

Material	Total
LF Polygon Core	25
MF Polygon Core	28
HF Polygon Core	40
FF Polygon Core	57
When Irises Bloom	26
Waveworn Residue 210	25
Waveworn Residue 226	28
Waveworn Residue 235	55
Waveworn Residue 239	67
Shell Credit	2,030,000

Stat bonus and single-rank nodes

Nodes	Shell Credits	Materials
Single-rank nodes (×5)	30,000	MF Polygon Core ×3 HF Polygon Core ×3 When Irises Bloom ×2 Waveworn Residue 226 ×3 Waveworn Residue 235 ×3
Stat bonus nodes, tier 1 (×4)	200,000	HF Polygon Core ×12 Waveworn Residue 235 ×12
Stat bonus nodes, tier 2 (×4)	400,000	FF Polygon Core ×12 When Irises Bloom ×4 Waveworn Residue 239 ×12

Where to farm Chisa's materials

Summer Flower

Local specialty. Found at Overworld routes.

Grows in the wild and respawns every couple of days; interactive-map routes cover a full loop.

Abyssal Husk

Boss drop. Found at Lady of the Sea - Embers of Glory (world boss).

Claim the reward for 60 Waveplates.

LF Polygon Core

Enemy drop. Found at Tacet Discords across the overworld.

The Polygon Core series drops from matching enemies; the Synthesizer converts lower tiers into higher ones.

Waveworn Residue 210

Forgery Challenge. Found at Forgery Challenge.

Open days rotate through the week, so check the Guidebook before spending Waveplates.

When Irises Bloom

Weekly boss. Found at When Irises Bloom (weekly challenge).

Three reward claims per week, so the full 26 takes about nine weeks.

Shell Credit

Currency. Found at Simulation Training, quests and events.

About 2.2 million Shell Credits in total: 170,000 for ascension and 2,030,000 for the full forte board.

FAQ

How many Summer Flower does Chisa need?

60 in total: 4 at the first breach, then 4, 8, 12, 16 and 20 at each breach up to level 90.

How many When Irises Bloom does Chisa need?

26: twenty for the main forte nodes at levels 7 to 10, four for the tier-2 stat nodes and two for the single-rank nodes.

Where does Abyssal Husk drop for Chisa?

From Lady of the Sea - Embers of Glory, the world boss; claim the reward for 60 Waveplates.

How many Shell Credits does it take to fully build Chisa?

About 2.2 million: 170,000 for ascension from level 20 to 90 and 2,030,000 for the entire forte board.

Planning the full build? Chisa's stats, skills, passives and resonance chains live on the Chisa kit page.