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 March 2026

LEIFRAS Co., Ltd.

Ebisu Garden Place Tower Floor 17
4-20-3, Ebisu, Shibuya-ku
Tokyo, Japan
+81-30-6451-1341

(Address and telephone number, including area code, of Registrant’s principal executive offices)

Correction of Notice of Ordinary General Meeting of Shareholders of LEIFRAS Co., Ltd.

On March 12, 2026, in accordance with the rules and regulations of the Japanese Companies Act, LEIFRAS Co., Ltd. (the “Company”) sent a notice and accompanying information to all holders of its ordinary shares and American Depositary Shares with respect to its Ordinary General Meeting of Shareholders to be held in Tokyo, Japan on March 27, 2026 at 10:00 am Japanese Standard Time.

On March 25, 2026 , the Company published on its investor relations website a correction to such notice to amend certain descriptions relating to its non-life insurance and life insurance businesses. The revised meeting notice will also be distributed at the Ordinary General Meeting of Shareholders in accordance with the Japanese Companies Act.

Exhibit 99.1 furnished hereto shall not be deemed “filed” for the purposes of Section 18 of the Securities Exchange Act of 1934, as amended, or otherwise subject to the liabilities of that section.

Exhibit Index

SIGNATURES

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.