666 Disorder Openweight Championship

The 666 Disorder Openweight Championship (Japanese: 666認定無秩序無差別級王座, Hepburn: Toripuru Shikkusu-nintei Muchitsujo Musabetsu-kyū Ōza) is a professional wrestling championship and the top singles accomplishment in the Japanese promotion Wrestling of Darkness 666 (Triple Six), established in 2018.

666 Disorder Openweight Championship
Onryo with the current belt design in March 2021
Details
Promotion	666
Date established	2018
Current champion	Onryo
Date won	June 6, 2025
Statistics First champion Yuko Miyamoto Most reigns Yuko Miyamoto and Onryo (2 reigns) Longest reign Konaka=Pahalwhan (569 days) Shortest reign Yuko Miyamoto (63 days) Oldest champion Onryo (54 years, 10 days) Youngest champion Koju Takeda (32 years, 86 days) Heaviest champion Yuko Miyamoto (90 kg (200 lb)) Lightest champion Onryo (0 kg (0 lb))[a]

The title is currently held by Onryo who is in his second reign.

History

On December 23, 2018, Yuko Miyamoto defeated Onryo in the final of a 16-person tournament to win the inaugural title.^[1]

In October 2023, Koju Takeda vacated the title after suffering an injury and having been diagnosed with a cervical hernia.^[2][3] A tournament was then held in early 2024 to determine a new champion.

Inaugural tournament

The tournament to crown the inaugural 666 Disorder Openweight Champion started on February 23, 2018, at 666 vol. 81. A "first round" 26-person battle royal was held with the last 15 survivors advancing to the second round alongside Mame Endo who received an automatic bye.^[4]

Round 2 February 23, April 28, June 6

Quarterfinals August 17, October 27

Semifinals December 23

Final December 23

Yuko Miyamoto

Pin

Naoshi Sano

7:46[5]

Yuko Miyamoto

Pin

Kouzy

1:36[6]

K666

9:13[5]

Kouzy

Pin

Yuko Miyamoto

Pin

Koju Takeda

9:22[1]

Koju Takeda

Pin

Masked Badi II

12:39[7]

Koju Takeda

Pin

Hiroaki Taniguchi

9:12[8]

Mame Endo

13:06[7]

Hiroaki Taniguchi

Sub

Yuko Miyamoto

Pin

Onryo

12:35[1]

Onryo

Pin

Hercules Senga

7:43[5]

Onryo

Pin

Taro Yamada

11:15[8]

Ram Kaicho

[4]

Taro Yamada

Forfeit

Onryo

Pin

Konaka=Pahalwhan

7:42[1]

Konaka=Pahalwhan

Pin

Takonyūtō

12:00[7]

Konaka=Pahalwhan

Pin

Nene Mugen D.a.i[b]

5:53[6]

Shinobu

Sub

Nene Mugen D.a.i

9:58[4]

Reigns

As of August 17, 2025, there have been a total of seven reigns shared among five different wrestlers, and one vacancy. The current champion is Onryo who is in his second reign.

Key

No.	Overall reign number
Reign	Reign number for the specific champion
Days	Number of days held
Defenses	Number of successful defenses
+	Current reign is changing daily

No.	Champion	Championship change			Reign statistics			Notes	Ref.
		Date	Event	Location	Reign	Days	Defenses
1	Yuko Miyamoto	December 23, 2018	666 vol. 86: 16th Anniversary Show	Tokyo, Japan	1	552	4	Defeated Onryo in the final of a 16-person tournament to become the inaugural champion.	[1][9]
2	Onryo	June 27, 2020	666 vol. 97: Onryo 25th Debut Anniversary	Tokyo, Japan	1	562	2		[10][9]
3	Konaka=Pahalwhan	January 10, 2022	666 vol. 111	Tokyo, Japan	1	569	5		[11][9]
4	Koju Takeda	August 2, 2023	666 vol. 131: 666 20th Anniversary & Yuko Miyamoto 20th Debut Anniversary	Tokyo, Japan	1	149	0		[12]
—	Vacated	December 29, 2023	666 vol. 136	Tokyo, Japan	—	—	—	The title was vacated after Koju Takeda suffered a torn calf muscle and was diagnosed with a cervical hernia in October.	[2][3]
5	Ikuto Hidaka	April 28, 2024	666 vol. 141	Tokyo, Japan	1	341	3	Defeated Yuko Miyamoto in a tournament final to win the vacant title.	[13]
6	Yuko Miyamoto	April 4, 2025	666 vol. 150	Tokyo, Japan	2	63	0		[14]
7	Onryo	June 6, 2025	666 vol. 152: Onryo's 30th Anniversay & Ram Kaichow's 20th Anniversary	Tokyo, Japan	2	72+	0	This match was also for Onryo's 666 Locomotiveweight Championship.	[15]

Combined reigns

As of August 17, 2025.

†	Indicates the current champions

Rank	Wrestler	No. of reigns	Combined defenses	Combined days
1	Yuko Miyamoto	2	4	615
2	Onryo †	2	2	634+
3	Konaka=Pahalwhan	1	5	569
4	Ikuto Hidaka	1	3	341
5	Koju Takeda	1	0	149

See also

• Japan portal

• Professional wrestling in Japan

Footnotes

1. In storyline, Onryo is a yōkai that is billed as weighing 0 kg.
2. Although Shinobu defeated Nene Mugen D.a.i in the first round, he offered Nene to advance in the tournament.