On November 21 (Tue), you can visit the manga museum for free because it is Kansai Culture Day.

Kansai Culture Day is an annual promotion event that allow people visit registered cultural facilities in 10 prefectures in Kansai region for free.
The program is organized by the Union of Kansai Governments, KANSAI Tourism Bureau and the Association for Promotion of Kansai Genki Bunkaken.