Bitcoin-related coins all rise at once, hitting new record highs for three consecutive days

While Bitcoin has been hitting new highs for three consecutive days and showing a "sharp rise," crypto assets (virtual currencies) classified as "Bitcoin series" among altcoins are showing an upward trend.
The price of Bitcoin rose 5.5% from the same time the previous day to 136.7 million won (approximately 14.05 million yen) on the 21st at 1:50 pm on the Upbit basis.
Among altcoins, meaning virtual currencies other than Bitcoin, the top three in terms of increase rate at the current time are Bitcoin Gold, Bitcoin Cash, and Bitcoin.
The price of Bitcoin Gold rose 20% from the previous day to the 53,000 won (about 5,800 yen) range, while the price of Bitcoin Cash rose 16%.
The price of Bitcoin rose 14% to the 106,700 won (US$118), while the price of Bitcoin SV rose 14% to the 106,700 won (US$118).
Rather than all three cryptocurrencies experiencing their own price increases, the strength of Bitcoin is causing a "cyclical buying market."
All three cryptocurrencies are hard forks (separated) from the Bitcoin blockchain.
The market capitalization of Bitcoin Gold is 810 billion won (approximately 89 billion yen), the same as Bitcoin Cash.
Its market capitalization is 12.1 trillion won (approximately 1.333 trillion yen), while Bitcoin SV's market capitalization is 1.9 trillion won (approximately 209 billion yen).