Metaplanet, a publicly traded Japanese firm with Bitcoin as its main asset, has revealed plans to issue 46 billion won ($42 million) in bonds to purchase more Bitcoin. The move comes as Bitcoin's price has been on a tear in recent months, reaching new all-time highs. Metaplanet's bond issuance is a sign of growing interest in Bitcoin from institutional investors. The company's decision to use the proceeds to buy Bitcoin is a bullish signal for the cryptocurrency's future. Metaplanet's bond issuance is the latest in a series of moves by Japanese companies to embrace Bitcoin. Earlier this year, Japanese financial giant SBI Holdings announced plans to launch a Bitcoin exchange. Other Japanese companies, such as GMO Internet and Rakuten, have also made significant investments in Bitcoin. The growing interest in Bitcoin from Japanese companies is a major development for the cryptocurrency. Japan is one of the world's largest financial markets, and the involvement of Japanese companies could help to legitimize Bitcoin and attract more institutional investors.