Product Details

Kokushibo is Upper Moon One - the strongest demon under Muzan and the most powerful swordsman in the Kimetsu No Yaiba universe. He was born Tsugikuni Michikatsu, twin brother of Yoriichi, the creator of Sun Breathing. Where Yoriichi mastered the breath of the sun, Michikatsu chose immortality and became the first demon to use breathing techniques in his art. His Moon Breathing created crescent blade attacks that multiplied with each swing. After centuries as a demon, his Nichirin blade grew eyes - a physical manifestation of his transformation fused into the steel itself.

The 1045 carbon steel blade recreates that signature design: a red base with yellow eyes running along the steel, capturing the unsettling organic quality that makes Kokushibo's sword unlike anything else in the series. This is not a clean, elegant Hashira blade. This is a sword that looks alive. Full-tang construction at 40.5 inches and 3.2 lbs. The alloy tsuba features a circular shape with four indentations, three eyes at the center surrounded by black veins and a golden border - mirroring the demonic eyes that cover Kokushibo's face.

The pink PU leather scabbard and dark green cord handle create an unusual color combination that stands apart from every other Kimetsu No Yaiba sword. Where Hashira blades use bold primary colors tied to their breathing styles, Kokushibo's muted pink and green palette reflects his existence between worlds.

Marco calls it "perfect and very well balanced." Abigail plans to come back for more "just based on how beautiful these katanas are." Shana's daughter specifically requested this sword by name for her birthday. Theresa bought it as an academic reward for her grandson who maintained his honor roll GPA.

For Kimetsu No Yaiba collectors, this occupies a unique position as the only villain blade in the lineup. Displaying it alongside the Hashira collection creates the narrative tension the series is built on. Browse the full Nichirin sword collection for all available builds.

Includes pink PU leather scabbard. Stand not included. Free worldwide shipping with 30-day money-back guarantee.

  • Kokushibo's Nichirin - Upper Moon One's blade that grew eyes after centuries as a demon, the only villain sword in the Kimetsu No Yaiba collection.
  • Red base with yellow eyes along the steel - unlike any Hashira blade, capturing the unsettling organic quality of Kokushibo's design.
  • Circular tsuba with three eyes at center, black veins and golden border - mirroring the demonic eyes on Kokushibo's face.
  • Pink PU leather scabbard and dark green cord handle - a muted, unusual palette that sets this apart from every other sword in the lineup.
  • 40.5 inches, 3.2 lbs, full-tang. Buyers praise it as 'perfect and very well balanced.'

Specification

Product Specifications
Item NumberTK-JP-G10363
Primary ColorPink
Primary Material1045 Carbon Steel
ThemesDemon Slayer
Dimensions40.5 x 1.3 x 0.3 Inches
Weight3.2 Pounds
Packing Size43.4 x 3.9 x 3.14 Inches
Shipping Weight3.3 Pounds

Customer Reviews(16)

Jonathan Butler Maryland, United States
Dec 19, 2025 13:02

Good quality, pretty heavy, not too sharp. Definitely good for displaying. Definitely will get more from here, when I can

Shana Macnair Florida, United States
Nov 05, 2024 12:09

Shipped fast. It’s a beautiful Katana. My daughter added a Katana to her birthday wishlist and said I could only get it for True Katana. Hopefully she loves it.

Marcus Waldman Manawatu-wanganui, New Zealand
Jan 12, 2024 21:42

Great product, my son was stoked! And it got here quicker than local post....🤔

Abigail Ekstrand Ohio, United States
Jan 04, 2024 13:10

It’s incredible and I do plan to come back for more just based on how beautiful these katanas are.

Lucas Simon Illinois, United States
Sep 17, 2023 13:49

Arrived fast to the U.S had trouble opening it the first time due to the wrap on the blade but other then that 5/5 would purchase again and probably will :)

Jadan Williams Georgia, United States
Jun 29, 2023 13:25

Thank you. Quick delivery got here a day after her birthday and I ordered it three days before

Trenon Fletcher Alabama, United States
May 26, 2023 14:18

Great quality, it looks amazing and the shipping was speedy.

Marco Rodriguez Oregon, United States
Jan 18, 2023 13:19

It’s perfect and very well balanced I love it a lot thank you guys

Tj Reed Florida, United States
Nov 02, 2022 15:15

One of my favorite katana websites.

Theresa Huntington Arizona, United States
Oct 10, 2022 14:08

My grandson loves the Katana I bought for him, he continued his grade point and is an honor student. That was why I got him the sword. Thank you.

Patrick Hagerty Texas, United States
Sep 30, 2022 14:02

Amazing shipping time, and great sword, sadly the purple thing on the sheath came off, but i can just stick it back on so it isnt a problem. over all 4.8/5 would recommend

James Ryan Payne Georgia, United States
Aug 11, 2022 09:42

I love my purchase and it’s a great addition to my growing collection

Samuel Linder Ohio, United States
Jun 13, 2022 08:51

The paint smudges with oil on it and the saya is a bit loose but aside from that it’s a great sword

Jordan Michael Lara Texas, United States
May 01, 2022 14:37

Really good quality im being 100% serious lol,m. I accidentally cut myself its sharp so be careful guys