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CONSOLIDATED BALANCE SHEETS (Parenthetical) - ¥ / shares
Dec. 31, 2024
Dec. 31, 2023
Common Class A [Member]    
Common stock, par value ¥ 0.2 ¥ 0.2
Common stock, shares authorized 800,000,000 800,000,000
Ordinary stock, shares issued 13,136,546 258,033
Ordinary stock, shares outstanding 13,136,546 258,033
Common Class B [Member]    
Common stock, par value ¥ 0.2 ¥ 0.2
Common stock, shares authorized 200,000,000 200,000,000
Ordinary stock, shares issued 10,000,000 0
Ordinary stock, shares outstanding 10,000,000 0