[6-K] rYojbaba Co., Ltd. Current Report (Foreign Issuer)

Rhea-AI Filing Summary

rYojbaba Co., Ltd. furnished a Form 6‑K to share a business update. The company issued a press release on November 11, 2025 titled “rYojbaba Co., Ltd. Joins Guardian Girls International (GGI) as an Official Partner for the Guardian Girls Ju‑Jitsu Project.” The press release is included as Exhibit 99.1.

The submission is deemed furnished, not filed, under the Exchange Act and is not incorporated by reference into other filings unless expressly stated.

Form 6-K: How Foreign Companies Report to the SEC →

UNITED STATES

SECURITIES AND EXCHANGE COMMISSION

Washington, D.C. 20549

Form 6-K

REPORT OF FOREIGN PRIVATE ISSUER PURSUANT TO RULE 13a-16 OR 15d-16

UNDER THE SECURITIES EXCHANGE ACT OF 1934

For the month of November 2025

Commission File Number: 001-42781

rYojbaba Co., Ltd.

4-3-1, Ohashi, Minami-Ku

Fukuoka-Shi, Fukuoka, 815-0033, Japan

(Address of principal executive office)

Indicate by check mark whether the registrant files or will file annual reports under cover of Form 20-F or Form 40-F.

Form 20-F ☒ Form 40-F ☐

INFORMATION CONTAINED IN THIS FORM 6-K

rYojbaba Co., Ltd. (the “Company”) is furnishing this Report on Form 6-K to provide information concerning a recent business development.

On November 11, 2025, the Company issued a press release titled “rYojbaba Co., Ltd. Joins Guardian Girls International (GGI) as an Official Partner for the Guardian Girls Ju-Jitsu Project.” A copy of this press release is furnished as Exhibit 99.1 to this Report on Form 6-K and is incorporated herein by reference.

This Report on Form 6-K and the information contained herein shall be deemed to be furnished and not filed for purposes of Section 18 of the Securities Exchange Act of 1934, as amended (the ‘Exchange Act’), or otherwise subject to the liabilities of that section, and shall not be incorporated by reference into any filing under the Securities Act of 1933 or the Exchange Act, except as shall be expressly set forth by specific reference in such a filing.

EXHIBIT INDEX

Exhibit		Description
99.1		Press Release dated November 11, 2025 -- rYojbaba Co., Ltd. Joins Guardian Girls International (GGI) as an Official Partner for the Guardian Girls Ju-Jitsu Project

SIGNATURE

Pursuant to the requirements of the Securities Exchange Act of 1934, the registrant has duly caused this report to be signed on its behalf by the undersigned, thereunto duly authorized.

rYojbaba Co., Ltd.
By:	/s/ Ryoji Baba
	Ryoji Baba
	Chief Executive Officer

Date: November 12, 2025

FAQ

What did rYojbaba (RYOJ) disclose in this Form 6-K?

rYojbaba furnished a press release announcing it joined Guardian Girls International as an official partner for the Guardian Girls Ju‑Jitsu Project.

When was the rYojbaba (RYOJ) press release issued?

The press release was issued on November 11, 2025 and furnished as Exhibit 99.1.

Is this Form 6-K considered filed or furnished?

It is deemed furnished, not filed, under the Exchange Act.

Will the information be incorporated by reference into other filings?

It will not be incorporated by reference unless expressly set forth by specific reference in another filing.

What is the title of the Exhibit 99.1 press release?

“rYojbaba Co., Ltd. Joins Guardian Girls International (GGI) as an Official Partner for the Guardian Girls Ju‑Jitsu Project.”