Is jujutsu kaisen birthday decorations profitable to sell on Amazon United States?

The niche generates $83K/yr across 34 tracked products. 3 of 22 products launched in the last 360 days are still selling. 90-day search growth is +19.9%. Flapen's verdict: Worth a look (57/100).

How competitive is the jujutsu kaisen birthday decorations niche?

15 brands and 18 sellers compete. The top 5 products take 40% of clicks and top 5 brands hold 73% of demand.

What do buyers complain about in jujutsu kaisen birthday decorations?

Top complaints mined from reviews: Quality-Overall, Size-Overall, Smell. The return rate is 1.1%.

When does demand for jujutsu kaisen birthday decorations peak?

Demand peaks in May; the busiest month runs 2.2× the quietest.

What does it cost to enter the jujutsu kaisen birthday decorations niche?

Listings span $5.81–$32.74; the average listing price is $17.58 (sweet spot $15–$100). The average incumbent carries 33 reviews — the moat a new listing must climb.

jujutsu kaisen birthday decorations

Worth a look

Shows a thin review moat (33 avg reviews), but a failed launch gate (market size, growth, or returns) keeps it on the watch list.

Review moat

Incredible32.68

avg incumbent reviews — the moat a new listing must climb

Returns

Great1.1%

return rate — above 5% kills the launch gate

Avg price

Great$17.58

avg listing price — sweet spot $15–$100

Competition

Great40%

top-5 click share — an open shelf

Price range

Good$5.81–$32.74

cheapest to priciest tracked listing — scored on the share inside $15–$100

Brand share

Good73%

top-5 brand share — brands hold most of the demand

Growth

Okay+19.9%

90-day search growth — must beat 0% to launch

Conversion

Okay3.9%

search→purchase rate — share of searches ending in a sale

Quality gap

Okay4.6★

avg incumbent rating — lower means beatable quality

Market size

Bad$83K

$83K/yr · 122K searches

Signals Low Review Barrier

According to Flapen's Amazon United States niche tracking, jujutsu kaisen birthday decorations is a $83K/yr Amazon United States market (122K searches/yr). The top 5 brands hold 73% of demand. Demand peaks in May. Verdict: Worth a look — 57/100.

Data updated Jul 23, 2026 · scored weekly · How we score niches

jujutsu kaisen birthday decorations market data

Units sold / yr: 3K–4K; avg 100–250/product
Revenue / yr: $53K–$70K; units × avg price
Conversion rate: 3.9%
Avg BSR: #3,439
Page quality: 0%
Prime: 100%
Sponsored: 29%
Out of stock: 4.8%
Avg brand age: 22 months
Avg seller age: 167 days

Competition & brand share

Clicks spread well past the top 5 (40% combined) — an open shelf where new products get seen.

Brands

15 rising

Sellers

Top-5 brand share

73%

Top 20: 100%

Top-5 click share

40%

Top 20: 89%

Open market

21%

Generic30%
Ezcpigei19%
Kuailaihai10%
Magsamson8%
karg6%
ELZEM5%

Demand & seasonality

Weekly Amazon search volume, last 104 weeks — +19.9% search growth over the last 90 days.

Peak months: May · busiest ÷ quietest = 2.2×

Open Trend

Top jujutsu kaisen birthday decorations search terms

jujutsu kaisen birthday decorations51K/yr +22.3%3.1% conv.
jjk birthday decorations19K/yr +26.1%2.1% conv.
jujutsu kaisen party decorations14K/yr +23.6%3.0% conv.
jujutsu kaisen birthday13K/yr +11.3%1.9% conv.
jujutsu kaisen cake topper11K/yr +8.0%2.8% conv.
gojo birthday decorations9K/yr +17.5%2.8% conv.
jjk party decorations5K/yr +13.9%2.9% conv.

All search terms

Top jujutsu kaisen birthday decorations products on Amazon

Each bubble is one product — market share against review moat; bubble size tracks estimated sales, color grades how beatable the incumbent looks.

Beatable (≤4.3★) Contested Strong incumbent (>4.7★)

All 24 tracked products in this niche — three views at once, no toggling.

Top sellers

by 90-day click share

animation Jujutsu theme birthday decorations Kaisen party supplies Including: banners Balloon background cake toppers.

Generic$24.073.9★7 rev

Jujutsu Manga Kaisen Birthday Party Supplies including Cake Topper Cupcake Toppers Banner Latex Balloons It is Very Suitable for Boys and Girl Anime Themed Birthday Party Supplies. Black

Ezcpigei$23.574.3★73 rev

Anime Birthday Party Decoration Include Satoru Happy Birthday Banner Cake Topper Latex Balloons for Jujutsu Fans Party Supplies

Magsamson$20.394.4★8 rev

Jujutsu Anime Kaisen Birthday Backdrop Poster for Jujutsu Anime Kaisen Theme Party Decorations Anime Birthday Supplies Background Studio Shoot Photo Props

Generic$19.254.1★9 rev

Jujutsu Anime Kaisen Birthday Backdrop Poster for Jujutsu Anime Kaisen Theme Party Decorations Anime Birthday Supplies Background Studio Shoot Photo Props

Generic$14.365.0★8 rev

Newest

by launch date

Cartoon For Jujutsu Manga Kaisen Birthday Party Supplies Set Birthday Decorations Set Include Banner Balloons Hanging Swirls Cake Cupcake Toppers for Boys Girls Party.

EKIH$19.973 rev

3mo ago

animation Jujutsu theme birthday decorations Kaisen party supplies Including: banners Balloon background cake toppers.

Generic$24.077 rev

3mo ago

Jujutsu Manga Kaisen Birthday Party Decorations Banner Backdrop Jujutsu Manga Kaisen Themed Banner Party Supplies for Kids Fans Happy Birthday Photography Background Wall Decor

Ezcpigei$14.041 rev

4mo ago

Get Trend Jujutsu Kaisen Boys T Shirts 2 Pack Short Sleeve Tops Kids Crewneck Breathable Graphic Tees Anime Gifts for Boys (15-16 Years Black/Purple Jujutsu Kaisen)

Get Trend$26.0653 rev

4mo ago

2Pcs Cartoon For Jujutsu Manga Kaisen Birthday Porch Sign Door Hanging Banner Cartoon Birthday Party Supplies for Wall Decorations.

Kuailaihai$15.856 rev

6mo ago

What buyers say about jujutsu kaisen birthday decorations

What buyers praise and complain about, mined from review topics.

What buyers love

Quality-Overall29%

“Great kit easy to use looked amazing”

Value For Money11%

“Great value”

Advertised Vs Actual Product8%

“Exactly as described, thank you”

Fun/Entertainment Experience8%

“Very kids friendly”

Size-Overall5%

“Size is perfect”

Color4%

“The colors are bright”

Design-Overall4%

“The designs looked great”

Gifting Purpose4%

“Great for decorating”

Durability4%

“I was pleasantly surprised by the durability”

Material Quality3%

“The backdrop is nice material”

What buyers complain about

Quality-Overall28%

“Not the highest quality set”

Size-Overall17%

“They are so small”

Smell8%

“The biggest thing to be aware of is the intense chemical odor that hits you as soon as you open the package”

Assembly/Installation6%

“Patience is needed putting this together”

Advertised Vs Actual Product4%

“up close you can tell its not premium artwork”

Thickness3%

“When I got it I didn't realize how thick it was”

Adhesion/Stickiness2%

“The sticky papers for the bottom of the table ones came apart”

Top return reasons

Size-Overall31%

Advertised Vs Actual Product16%

Value For Money12%

Quality-Overall9%

Color5%

Print Quality5%

Material Quality4%

Product Condition2%

Defective Material/Parts2%

Strength2%

Common questions

Is jujutsu kaisen birthday decorations profitable to sell on Amazon United States?: The niche generates $83K/yr across 34 tracked products. 3 of 22 products launched in the last 360 days are still selling. 90-day search growth is +19.9%. Flapen's verdict: Worth a look (57/100).
How competitive is the jujutsu kaisen birthday decorations niche?: 15 brands and 18 sellers compete. The top 5 products take 40% of clicks and top 5 brands hold 73% of demand.
What do buyers complain about in jujutsu kaisen birthday decorations?: Top complaints mined from reviews: Quality-Overall, Size-Overall, Smell. The return rate is 1.1%.
When does demand for jujutsu kaisen birthday decorations peak?: Demand peaks in May; the busiest month runs 2.2× the quietest.
What does it cost to enter the jujutsu kaisen birthday decorations niche?: Listings span $5.81–$32.74; the average listing price is $17.58 (sweet spot $15–$100). The average incumbent carries 33 reviews — the moat a new listing must climb.