BanG Dream! 9th☆LIVE

 was the franchise's ninth official live.

It was held on the following two set of dates:
 * August 21 & 22, 2021 (Titled The Beginning, with Poppin'Party and Roselia performing)
 * September 4 & 5, 2021 (Titled Mythology, with RAISE A SUILEN and Morfonica performing)

It was held at Fuji-Q Highland Conifer Forest, the same location where BanG Dream! 8th☆LIVE was also held. The concerts were livebroadcasted in select movie theaters in Japan, Hong Kong, Taiwan and South Korea.

"The Beginning" was opened by D4DJ's Tsumugi Risa,, and Shindou Amane; while "Mythology" was opened by , , and.

Lottery tickets for the live were included in the first-print limited editions of the following singles: Photograph, Bloom Bloom, ZEAL of proud and mind of Prominence.

Opening Act
Source: d4dj-pj.com

Opening Act
Source: d4dj-pj.com

Opening Act
Source: d4dj-pj.com

Opening Act
Source: d4dj-pj.com

Video
Announcement = The Beginning PV = Mythology PV = Live Viewing CM = The Beginning Opening Act (Full) = Mythology Opening Act (Full) =

Special Viewing
A Special Viewing of the Live was announced on September 5, 2021 with tickets available for purchasing on the same date. "The Beginning" was open for special streaming from September 18 to October 3, 2021, while "Mythology" was streamed from September 25 until October 10, 2021.

The stream was available in the following countries:
 * North America
 * United States
 * Europe
 * Netherlands
 * Greece
 * Germany
 * Belgium
 * Romania
 * Hungary
 * Denmark
 * Ireland
 * Finland
 * Portugal
 * United Kingdom
 * Spain
 * France
 * Italy
 * Norway
 * Czech Republic
 * Bulgaria
 * Sweden
 * Austria
 * Poland
 * Switzerland
 * Asia-Pacific
 * India
 * Malaysia
 * Hong Kong
 * Philippines
 * South Korea
 * Singapore
 * Taiwan
 * Australia
 * Latin America and the Caribbean
 * Colombia
 * Argentina
 * Brazil
 * Chile
 * Middle East
 * United Arab Emirates
 * Bahrain
 * Israel
 * Africa
 * South Africa
 * Kenya

The streaming service was unavailable in certain locations such as China, Russia, and North Korea.