Wan Fu's endless flag is still straight.

Wan Fu Ji is a flag. "Wan Fu Ji" is a banner calligraphy and painting hanging on the wall, inscribed by the famous calligrapher Fu. Banner is a specification in ancient calligraphy, such as main hall, banner, couplet, banner, square and fan. Calligraphy was written horizontally from the beginning, so Qin calligraphy in the Western Zhou Dynasty was one of the flag formats.