>>6323140365k estimated copies sold in weekly oricon when it first came out, to Suisei's 32k estimated copies sold. The former ranked 1st in its first week (2023 august) while the latter ranked 4th (2023 January)
Of course, none of them beat Kuzuha's fist album Sweet Bite, that sold over 90k copies in the first week, and it's the only vtuber album to rank in the top 100 best selling albums of 2022.