What is C73, and what does the Japanese budokan do?

Comiket, the full name of Comic Market, is a large-scale anime fan exhibition with a history of more than 30 years in Japan. Comiket is held twice a year, in winter and summer respectively, and summer is the biggest one. The 73rd Japan Budokan (にっぽんぶどぅかんんんんんんんんんんんんんんんん

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