Project Sekai
Project Sekai shows a thin review moat (146 avg reviews), but weak search conversion (0.6%) keeps it on the watch list.
Flapen Score
Top 30% of 3,143 Toys & Games niches · +4 vs the category median of 46
Is Project Sekai profitable on Amazon?
According to Flapen's Amazon United States niche tracking, Project Sekai is a $124K/yr Amazon United States market (433K searches/yr). The top 5 brands hold 76% of demand. Demand peaks in Nov–Dec. Verdict: Worth a look — 50/100.
Project Sekai: the Amazon niche in one read
Everything a seller checks before entering, in three answers.
Is the demand real?
Worth a look. Search demand moved -8.2% over the last 90 days and 0.6% of searches end in a purchase.
$124K
revenue / yr
Who owns the niche?
The top 5 brands hold 76% of demand, so 24% of the market is open.
24%
open market share
Is there a way in?
Listing quality. The average product page scores 0/100 on content standards. Incumbents average 4.5★ — the gap to enter on.
0/100
page quality · 56 products
Top Project Sekai products & what they sell for
Every tracked product — its share of the shelf, its review moat, and what it sells for.
Top sellers
by 90-day click share
Weiss Schwarz Booster Pack Project Sekai Colorful Stage! feat. Hatsune Miku Vol. 3 BOX
- Price
- $59.44
- Rating
- 4.4/5
- Reviews
- 29
- Age
- 10mo ago
60Pcs Anime Stationery Stickers Project Sekai Vocaloid Cute Kawaii Sticker Stationery Student Cartoon Manga Waterproof Graffiti Decorate
- Price
- $10.91
- Rating
- 3.1/5
- Reviews
- 4
- Age
- 5mo ago
Weiss Schwarz Rose Booster Pack: Interspecies Reviewers Box
- Price
- $49.30
- Rating
- 4.6/5
- Reviews
- 3
- Age
- 4mo ago
QIUTIMIY Paisley Pashmina Shawls and Wraps for Women Reversible Jacquard Festival Rave Pashmina Scarves with Fringe Vintage(Flower17-White Black)
- Price
- $16.71
- Rating
- 4.6/5
- Reviews
- 101
- Age
- 1y ago
Bushiroad Weiss Schwarz Collection Pack Project Sekai Colorful Stage! feat. Hatsune Miku Box: 20 Packs (1 Pack = 1 Card)
- Price
- $26.44
- Rating
- 4.3/5
- Reviews
- 40
- Age
- 1y ago
Trending
90-day click momentum
Good Smile Company Nendoroid Project Sekai Colorful Stage feat. Hatsune Miku Tenmaji Non-Scale Plastic Painted Action Figure
- Price
- $79.75
- Rating
- 5.0/5
- Reviews
- 5
- Age
- 8mo ago
Weiss Schwarz The Eminence in Shadow Booster Box (English) 12 Packs Bushiroad TCG 2026
- Price
- $92.37
- Rating
- 3.2/5
- Reviews
- 3
- Age
- 3mo ago
SUUKSESS Women Silk Cashmere Blend Crew Neck Short Sleeve Sweaters Business Casual Knitted Blouses (Camel L)
- Price
- $25.48
- Rating
- 4.2/5
- Reviews
- 84
- Age
- 7mo ago
Good Smile Company Nendoroid Project Sekai Colorful Stage! feat. Hatsune Miku Yoisaki Kanade Non-Scale Plastic Pre-Painted Action Figure
- Price
- $73.21
- Rating
- 5.0/5
- Reviews
- 3
- Age
- 8mo ago
QIUTIMIY Paisley Pashmina Shawls and Wraps for Women Reversible Jacquard Festival Rave Pashmina Scarves with Fringe Vintage(Flower17-White Black)
- Price
- $16.71
- Rating
- 4.6/5
- Reviews
- 101
- Age
- 1y ago
Newest
by launch dateWeiss Schwarz The Eminence in Shadow Booster Box (English) 12 Packs Bushiroad TCG 2026
- Price
- $92.37
- Rating
- 3.2/5
- Reviews
- 3
- Age
- 3mo ago
Weiss Schwarz Rose Booster Pack: Interspecies Reviewers Box
- Price
- $49.30
- Rating
- 4.6/5
- Reviews
- 3
- Age
- 4mo ago
60Pcs Anime Stationery Stickers Project Sekai Vocaloid Cute Kawaii Sticker Stationery Student Cartoon Manga Waterproof Graffiti Decorate
- Price
- $10.91
- Rating
- 3.1/5
- Reviews
- 4
- Age
- 5mo ago
SUUKSESS Women Silk Cashmere Blend Crew Neck Short Sleeve Sweaters Business Casual Knitted Blouses (Camel L)
- Price
- $25.48
- Rating
- 4.2/5
- Reviews
- 84
- Age
- 7mo ago
Thunder Tech Movie Project Sekai - Broken Sekai and Singing - Enai Miku Luminasta - Closed Window - Hatsune Miku Figure
- Price
- $35.61
- Rating
- 4.7/5
- Reviews
- 14
- Age
- 8mo ago
Competition: brands, sellers & click share
Clicks spread well past the top 5 (29% combined) — an open shelf where new products get seen.
Brands
19 rising
Sellers
183
Top-5 brand share
76%
Top 20: 100%
Top-5 click share
29%
Top 20: 68%
Open market
20%
- Bushiroad34%
- SEGA18%
- Generic12%
- Weiss Schwarz7%
- Good Smile Company5%
- QIUTIMIY4%
Project Sekai demand & seasonality
Weekly search volume, with the niche's key stats alongside.
Peak months: Nov, Dec · busiest ÷ quietest = 2.2×
Top Project Sekai search terms shoppers use
The exact queries shoppers type, with yearly volume, growth and conversion.
- project sekai202K/yr
- weiss schwarz76K/yr
- weiss schwarz booster box48K/yr
- project sekai figure28K/yr
- hatsune miku colorful stage21K/yr
- colorful stage25K/yr
- project sekai merch18K/yr
- weiss schwarz trial deck6K/yr
- sekai4K/yr
- project sekai colorful stage4K/yr
What reviews say buyers love and hate about Project Sekai
What buyers mention most, as a share of all reviews.
What buyers love
82% of reviews“Good quality”
“I love collecting them”
“Is as advertised”
“It's the right size”
“The price is affordable”
What buyers complain about
72% of reviews“for almost $100 it's sad that it didn't come with everything”
“Bigger than what we though”
“But they are pretty dope”
“Bad product and omiting relevant info”
“The straps are a little flimsy”
Project Sekai return rate & reasons
Why buyers send it back, as a share of all return requests.
2.5%
Return rate
70%
Fixable by listing
The "fixable" share counts expectation-mismatch reasons — size, look, advertised-vs-actual — that better copy and images address.
Common Project Sekai questions
The questions sellers ask about this niche, answered from the tracked metrics.
Related niches
Same-category niches scoring near this one — the next ones worth researching.
Best Flapen score
The highest-scoring niches we track right now, across every category.
