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 Commission File Number: 001-42186 Harrison Global Holdings Inc. (f/k/a Bloomz Inc.) Cricket Square, Hutchins Drive, P.O. Box 2681 Grand Cayman, KY1-1111, Cayman Islands INFORMATION CONTAINED IN THIS REPORT Approval and Ratification of Strategic Equity Acquisitions; Acknowledgement of Risks and Post-Closing Review Measures On March 26, 2026, the board of directors of Harrison Global Holdings Inc. (the Company) adopted unanimous written resolutions approving and ratifying certain previously executed share purchase agreements and related matters. Share Purchase Agreements The Board approved, ratified and confirmed the execution, delivery and performance of the following transactions: A Share Purchase Agreement dated March 23, 2026 with U Bio Science Co., Ltd., pursuant to which the Company agreed to acquire 40% equity interest for a total consideration of US$32,000,000 (the U Bio SPA); and A Share Purchase Agreement dated March 23, 2026 with Gemtech Co., Ltd., pursuant to which the Company agreed to acquire 100% equity interest for a total consideration of US$32,000,000 (the Gemtech SPA). The U Bio SPA and Gemtech SPA are collectively referred to as the SPAs. Framework Memorandum The Board further acknowledged, approved, ratified and adopted an Equity Acquisition Framework Memorandum dated May 25, 2025 (the Framework Memorandum) as a general strategic framework for the Company equity investment activities. The Framework Memorandum is non-binding in nature (except for certain limited provisions) and does not itself provide enforceable protections with respect to the SPAs. Acknowledgement of Transaction Background The Board acknowledged that: The transactions were initiated, led and executed under the direction of Co-Chief Executive Officer, Ryoshin Nakade; The purchase prices under the SPAs have been, or are expected to be, paid on or around the execution date; and Each SPA provides for the Company right to conduct a post-closing special audit. Limitations and Risk Disclosure In connection with the approval and ratification of the SPAs, the Board expressly acknowledged certain limitations, including: The information available to the Board was limited at the time of approval; Comprehensive financial, legal, tax and operational due diligence was not completed prior to execution of the SPAs; and No independent valuation or full financial analysis was presented to the Board, and any valuation materials provided were preliminary and subject to verification. The Board recognized that the transactions involve significant financial, legal and operational risks, and that the enforceability of certain contractual rights may be subject to practical limitations. Conditional Nature of Approval The Board approval and ratification of the SPAs were made on a conditional basis, subject to further verification and review to be conducted following closing. Special Audit and Remedial Actions The Board directed management, under the supervision of Co-Chief Executive Officer Ryoshin Nakade, to: Conduct a comprehensive post-closing special audit of the target companies; and Report findings to the Board promptly. Management has been authorized to take all necessary actions, including enforcement of rights, renegotiation of terms, or other remedial measures, if material issues are identified. Internal Governance Enhancements The Board further directed management to strengthen internal procedures, including: Investment approval processes; Due diligence protocols; and Risk management controls. Authorization Any director or officer of the Company has been authorized to take all actions and execute all documents necessary or desirable to carry out the intent of the foregoing resolutions. Authorized 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. Harrison Global Holdings Inc. By: /s/ Ryoshin Nakade Name: Ryoshin Nakade Title: Co-Chairman and Co-CEO Date: March 17, 2026