---
title: "Rengoku Cosplay — $33K/yr Amazon US Niche (2026) - Flapen"
canonical_url: "https://flapen.com/research/us/clothing-shoes-jewelry/rengoku-cosplay"
last_updated: "2026-08-11T00:08:56.235Z"
locale: en
meta:
description: "Niche score 48/100 · $33K/yr market · 150K searches/yr · $37.65 avg price. Doesn't clear our bar today. Data updated Jul 2026."
"og:description": "Niche score 48/100 · $33K/yr market · 150K searches/yr · $37.65 avg price. Doesn't clear our bar today. Data updated Jul 2026."
"og:title": "Rengoku Cosplay — $33K/yr Amazon US Niche (2026) - Flapen"
---
# **rengoku cosplay**
**Skip it**
Weak search conversion (0.6%) — this niche doesn't clear our bar today.
Market size 8Growth 24Conversion 7Competition 80Returns 14Price range 87Avg price 95Brand share 81Review moat 78Quality gap 80
**Avg price**
**Incredible****$37.65**
avg listing price — sweet spot $15–$100
**Price range**
**Great****$10.03–$62.21**
cheapest to priciest tracked listing — scored on the share inside $15–$100
**Brand share**
**Great****54%**
top-5 brand share — no brand owns this niche
**Competition**
**Great****35%**
top-5 click share — an open shelf
**Quality gap**
**Great****4.2★**
avg incumbent rating — lower means beatable quality
**Review moat**
**Great****437.15**
avg incumbent reviews — the moat a new listing must climb
**Growth**
**Bad****-1.5%**
90-day search growth — must beat 0% to launch
**Returns**
**Bad****8.0%**
return rate — above 5% kills the launch gate
**Market size**
**Bad****$33K**
$33K/yr · 150K searches
**Conversion**
**Bad****0.6%**
search→purchase rate — share of searches ending in a sale
**Signals**[** No Dominant Brand**](https://flapen.com/research/niches?market=us&signal=no_dominant_brand "Top brand's click share < 20%") [** High Returns**](https://flapen.com/research/niches?market=us&signal=high_returns "Return rate > 5%")
According to Flapen's Amazon United States niche tracking, rengoku cosplay is a $33K/yr Amazon United States market (150K searches/yr). The top 5 brands hold 54% of demand. Demand peaks in Sep–Oct–Nov. Verdict: Skip it — 48/100.
Data updated Jul 10, 2026 · scored weekly · [~~How we score niches ~~](https://flapen.com/research/methodology)
## **rengoku cosplay market data**
- **Units sold / yr**
- **1K–1K**
- avg 0–100/product
- **Revenue / yr**
- **$38K–$47K**
- units × avg price
- **Conversion rate**
- **0.6%**
- **Avg BSR**
- **#2,109**
- **Page quality**
- **0%**
- **Prime**
- **88%**
- **Sponsored**
- **83%**
- **Out of stock**
- **20.9%**
- **Avg brand age**
- **46 months**
- **Avg seller age**
- **176 days**
## **Competition & brand share**
Clicks spread well past the top 5 (35% combined) — an open shelf where new products get seen.
**Brands**
**21 **▲rising
**Sellers**
**23**
**Top-5 brand share**
**54%**
Top 20: 100%
**Top-5 click share**
**35%**
Top 20: 78%
**Open market**
**37%**
- Oikawa14% - IOONCHI10% - Buyoem10% - CR ROLECOS10% - SONGCHANGJEWELRY10% - Moalioi9%
## **Demand & seasonality**
Weekly Amazon search volume, last 104 weeks — -1.5% search growth over the last 90 days.
23K18KSpike '24Spike '25Prime Day '25Spike '26 seasonSepDecMarJunAugNovMarMay
Peak months: Sep, Oct, Nov · busiest ÷ quietest = 38.8×
[**Open Trend **](https://flapen.com/research/us/clothing-shoes-jewelry/rengoku-cosplay/trend)
## **Top rengoku cosplay search terms**
- **rengoku cosplay**98K/yr+1.0%0.6% conv. - **rengoku costume**43K/yr-19.4%0.4% conv. - **kyojuro rengoku cosplay**5K/yr-4.3%0.0% conv. - **rengoku costume adult**4K/yr-7.4%0.0% conv. [**All search terms **](https://flapen.com/research/us/clothing-shoes-jewelry/rengoku-cosplay/search-terms)
## **Top rengoku cosplay 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.
0%3%$9836%$2K9%$3K12%$4K101001K10K Reviews — right = deep review moatMarket share (90d) ≈ est. sales
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
[1**CR ROLECOS Rengoku Cosplay Costume Adult Anime Kyojuro Rengoku Cosplay Kimono Outfit Cape Uniform Halloween XS**CR ROLECOS**$34.26**4.4★4,148 rev](https://www.amazon.com/dp/B0G31TY25G) [2**Anime Rengoku Hanafuda Earrings - Accessories for Kimetsu No Yaiba Cosplay**SONGCHANGJEWELRY**$10.03**4.6★55 rev](https://www.amazon.com/dp/B08SLW44FG) [3**Adult Anime Cosplay Costume Kimono Cape Cardigan Top**IOONCHI**$23.37**4.4★106 rev](https://www.amazon.com/dp/B0DWXH8TK9) [4**Tkieio Anime Costume Kochou Outfit Cosplay Kimono Outfit Uniform Costume Role Play Full Set (Red 2XL)**Tkieio**$39.38**4.2★1,027 rev](https://www.amazon.com/dp/B097ZTWRK2) [5**Cosplay Costume Anime Cosplay Kimonos Outfit Uniform Halloween (L Suit-4)**UZAIN**$37.48**4.1★559 rev](https://www.amazon.com/dp/B0B4C3Y93Q)
**~~View all top sellers →~~**
### **Newest**
by launch date
[**CR ROLECOS Rengoku Cosplay Costume Adult Anime Kyojuro Rengoku Cosplay Kimono Outfit Cape Uniform Halloween XS**CR ROLECOS**$34.26**4,148 rev7mo ago](https://www.amazon.com/dp/B0G31TY25G) [**Adult Anime Cosplay Costume Kimono Cape Cardigan Top**IOONCHI**$23.37**106 rev1y ago](https://www.amazon.com/dp/B0DWXH8TK9) [**Adult Anime Cosplay Costume Kimono Cape Cardigan Top**IOONCHI**$23.15**106 rev1y ago](https://www.amazon.com/dp/B0DWXHHSG7) [**RENGENG Light Up Rengoku Sword 40 Inches Rechargeable Plastic Anime Replica with Belt & Stand Original Texture Anime Sword**RG RENGENG**$47.46**948 rev1y ago](https://www.amazon.com/dp/B0DBKZ267Q) [**ToouYoor Men Anime Cosplay Costume Anime Kimono Suit Outfit Halloween Costume(Orange XL)**ToouYoor**$37.09**59 rev2y ago](https://www.amazon.com/dp/B0CG5SZJZJ)
**~~View all new products →~~**
### **Trending**
90-day click momentum
[**Anime Cosplay Costume Kimono Halloween Women Mens Set Accessories**Moalioi**$21.20**4.4★**▲ 637%**](https://www.amazon.com/dp/B0BB7LT4TK) [**Anime Cosplay Costume Kimono Halloween Women Mens Set Accessories**Moalioi**$29.65**4.4★**▲ 633%**](https://www.amazon.com/dp/B0BB7LP33V) [**Anime Cosplay Costume Kimono Halloween Women Mens Set Accessories**Moalioi**$31.28**4.4★**▲ 627%**](https://www.amazon.com/dp/B0BB7LT144) [**Anime Rengoku Hanafuda Earrings - Accessories for Kimetsu No Yaiba Cosplay**SONGCHANGJEWELRY**$10.03**4.6★**▲ 526%**](https://www.amazon.com/dp/B08SLW44FG) [**Oikawa Rengoku Cosplay Costume Rengoku Outfits Anime Uniform Kimono Full Set with Wig (XL RENGOKU(wig))**Oikawa**$49.33**4.1★**▲ 415%**](https://www.amazon.com/dp/B09XX9ZRYD)
**~~View all trending →~~**
## **What buyers say about rengoku cosplay**
What buyers praise and complain about, mined from review topics.
### **What buyers love **
**Quality-Overall**19%
*“It was a really good quality”*
**Size-Overall**13%
*“Fit eell”*
**Value For Money**11%
*“Great for the price”*
**Comfort-Overall**10%
*“really comfortable as well”*
**Ease Of Use**5%
*“easy to put on”*
**Color**4%
*“We loved the colors and style”*
**Soft Feel**4%
*“Its soft”*
**Stitch/Finish/Polish**3%
*“Great color, quality, and the stitching is nice”*
**Strap/String Quality**2%
*“came with the Belt which has a super strong Velcro to keep it in place”*
**Heating**2%
*“Its durable to heat”*
### **What buyers complain about **
**Durability**14%
*“Does not last”*
**Defective Material/Parts**14%
*“My son was so excited just to get an item that was broken”*
**Size-Overall**12%
*“actually really long which I didnt expect”*
**Color**5%
*“Cape only had the red, no yellow”*
**Thickness**5%
*“I thought it might be too thin at first when running my hands through it”*
**Stretchability/Expandability/Elasticity**5%
*“The elastic on the skirt doesnt stretch much”*
**Arm Fit**5%
*“Size was too small in the arms”*
**Strap/String Quality**4%
*“No sleeves or straps to hold on”*
**Material Quality**3%
*“Thin material”*
**Quality-Overall**3%
*“pretty cheap quality”*
### **Top return reasons **
**Size-Overall**60%
**Advertised Vs Actual Product**6%
**Defective Material/Parts**5%
**Sleeve Fit**4%
**Quality-Overall**4%
**Functionality-Overall**4%
**Color**2%
**Wig/Artificial Hair Quality**2%
**Grip**2%
**Waist Fit**2%
## **Common questions**
- **Is rengoku cosplay profitable to sell on Amazon United States?**
- The niche generates $33K/yr across 41 tracked products. 0 of 4 products launched in the last 360 days are still selling. 90-day search growth is -1.5%. Flapen's verdict: Skip it (48/100).
- **How competitive is the rengoku cosplay niche?**
- 21 brands and 23 sellers compete. The top 5 products take 35% of clicks and top 5 brands hold 54% of demand.
- **What do buyers complain about in rengoku cosplay?**
- Top complaints mined from reviews: Durability, Defective Material/Parts, Size-Overall. The return rate is 8.0% — above our launch gate.
- **When does demand for rengoku cosplay peak?**
- Demand peaks in Sep–Oct–Nov; the busiest month runs 38.8× the quietest.
- **What does it cost to enter the rengoku cosplay niche?**
- Listings span $10.03–$62.21; the average listing price is $37.65 (sweet spot $15–$100). The average incumbent carries 437 reviews — the moat a new listing must climb.
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