Glossary
Baibai-keiyaku (sales contract)
Japan's binding property purchase contract, signed after the disclosure statement; its clauses fix your financial exposure.
The baibai-keiyaku (full name baibai keiyakusho) is the binding agreement between buyer and seller, signed after the juyo jiko setsumeisho disclosure is delivered and typically a few weeks before settlement. It locks the price, deposit terms, settlement date, financing contingency, and any special conditions you negotiated. The document is in Japanese and that text governs, regardless of any English summary you are shown. Anything not written into it, especially verbal promises from agents, is not enforceable, so get your conditions in before you stamp it.